Practice Final Exam

1 Which address provides an example of an IPv6 link-local address?

FE80::1324:ABCD
2001:2345:AB12:1935::FEFF
2001:1234:0000:9CA::0876/64
1234:ABCD:5678:EF00:9234:AA22:5527:FC35




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.3.2 IPv6 Addressing


2 While configuring a router using RIPng and dual-stack technology with IPv4 and IPv6, the administrator receives an error message when inputting IPv4 routes. What could cause the error message?

IPv4 is not compatible with RIPng
RIPng is incompatible with dual-stack technology.
The router interfaces have been configured with incorrect addresses.
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in favor of the newer technology.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.3.6 Routing Considerations with IPv6


3 Which statement is true about an interface that is configured with the IPv6 address command?

IPv6 traffic-forwarding is enabled on the interface.
A link-local IPv6 address is automatically configured on the interface.
A global unicast IPv6 address is dynamically configured the interface.
Any IPv4 addresses that are assigned to the interface are replaced with an IPv6 address.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.3.7 Configuring IPv6 Addresses


4 What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server?

Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.
The DHCP server function of the router will not issue the addresses between 172.16.4.1 and 172.16.4.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.1.4 Configuring a DHCP Server


5

Refer to the exhibit. A host that is connected to Fa0/0 is unable to acquire an IP address dynamically from the DHCP server. The output of the debug ip dhcp server command shows "DHCPD: there is no address pool for 172.16.1.1". What is the problem?

The default router for the 172Network pool is incorrect.
The 172.16.1.1 address is already configured on Fa0/0.
The pool of addresses for the 172Network pool is incorrect.
The ip helper-address command should be implemented on the Fa0/0 interface.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.1.8 Troubleshooting DHCP


6 What does an access control list determine when used with NAT on a Cisco router?

addresses that are to be translated
addresses that are assigned to a NAT pool
addresses that are allowed out of the router
addresses that are accessible from the inside network




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.2.5 Configuring Dynamic NAT


7 A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?

Configure static NAT.
Configure dynamic NAT.
Configure static NAT with overload.
Configure dynamic NAT with overload.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
7.2.6 Configuring NAT Overload


8 What three statements describe the roles of devices in a WAN? (Choose three.)

A CSU/DSU terminates a digital local loop.
A modem terminates a digital local loop.
A CSU/DSU terminates an analog local loop.
A modem terminates an analog local loop.
A router is commonly considered a DTE device.
A router is commonly considered a DCE device.




Observable Description Max Value
1 correctness of response Option 1, Option 4, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
1.2.2 WAN Physical Layer Concepts


9 At what physical location does the responsibility for a WAN connection change from the service provider to the user?

DMZ
local loop
CSU/DSU
demarcation point




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.1.3 Demarcation Point


10

Refer to the exhibit. Which statement is true about the WAN switch device?

It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25 over the WAN.
It provides internetworking and WAN access interface ports that are used to connect to the service provider network.
It provides termination for the digital signal and ensures connection integrity through error correction and line monitoring.
It converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog lines of the public telephone network.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
1.2.2 WAN Physical Layer Concepts


11

Refer to the exhibit. A network administrator is using two routers to test a WAN connection . What can be concluded based on the output of the show running-config commands?

The WAN link is using PPP encapsulation.
The WAN link speed is faster than a T1 line.
The router R2 serves as the DCE for the WAN link.
The WAN link is configured with the Cisco default encapsulation protocol.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.1.5 HDLC Encapsulation


12 Which important piece of troubleshooting information can be discovered about a serial interface using the show controllers command?

queuing strategy
serial cable type
interface IP address
encapsulation method




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.1.7 Troubleshooting a Serial Interface


13 Which combination of Layer 2 protocol and authentication should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?

HDLC with PAP
HDLC with CHAP
PPP with PAP
PPP with CHAP




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.4.1 PPP Authentication Protocols
2.4.3 Challenge Handshake Authentication Protocol (CHAP)


14 Which three items are LCP options that can be configured for PPP? (Choose three.)

CHAP
Stacker
IPCP
CDPCP
Multilink




Observable Description Max Value
1 correctness of response Option 1, Option 2, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.2.5 Establishing a Link with LCP


15 At what point in the PPP connection process does the authentication phase occur?

after NCP establishes Layer 3 parameters
before LCP begins the link establishment process
after the initial Configure-Request message from the link initiator
after the link initiator receives a Configure-Ack message from the responder




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.2.5 Establishing a Link with LCP


16

Refer to the exhibit. Why are the routers unable to establish a PPP session?

The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on Router1 must connect to interface serial 0/0/1 on Router2.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
2.4.5 Configuring PPP with Authentication


17

Refer to the exhibit. What would be the result of entering the exhibited configuration on a Frame Relay router?

The local interface DLCI will be set to 102.
All traffic that is destined to 172.16.16.8 will be sent as broadcast.
Only broadcast traffic will be recieved on the Frame Relay interface.
Routing protocol multicast updates can be forwarded across the Frame Relay PVC.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.2.2 Configuring Static Frame Relay Maps


18

Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC office of ABC Company to the Orlando office?

MAC address of the Orlando router
MAC address of the DC router
192.168.1.25
192.168.1.26
DLCI 100
DLCI 200




Observable Description Max Value
1 correctness of response 2 points for Option 6
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.1.3 Frame Relay Encapsulation


19 A company uses a PVC with a committed information rate (CIR) of 128 kb/s and a committed burst information rate (CBIR) of 64 kb/s. The link is used to periodically send updates at a rate of 144 kb/s. What will happen to the update traffic?

The traffic will be sent, but the company will be charged a penalty.
The traffic will be sent using the additional CBIR and will be guaranteed delivery.
The traffic will be dropped at the CO for exceeding the committed information rate.
The traffic will be sent, but the burst traffic will be marked for discard if congestion is encountered.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.3.2 Paying for Frame Relay


20 Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choose two.)

flow control
error notification
congestion notification
the mapping of DLCIs to network addresses
the sending of keepalive packets to verify operation of the PVC




Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.1.5 Frame Relay Address Mapping


21

Refer to the exhibit. You are a network administrator who has been tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?

HQ(config-subif)#frame-relay interface-dlci 103 on Serial 0/0/0.1
HQ(config-subif)#frame-relay interface-dlci 203 on Serial 0/0/0.2
HQ(config-subif)#frame-relay interface-dlci 301 on Serial 0/0/0.1
HQ(config-subif)# frame-relay interface-dlci 302 on Serial 0/0/0.2
HQ(config-subif)#frame-relay map ip 172.16.1.1 103 broadcast on Serial 0/0/0.1
HQ(config-subif)#frame-relay map ip 172.16.2.2 203 broadcast on Serial 0/0/0.2
HQ(config-subif)#frame-relay map ip 172.16.1.1 301 broadcast on Serial 0/0/0.1
HQ(config-subif)#frame-relay map ip 172.16.2.2 302 broadcast on Serial 0/0/0.2




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.4.1 Configuring Frame Relay Subinterfaces


22

Refer to the exhibit. Branch A has a Cisco router. Branch B has a non-Cisco router set for IETF encapsulation. After the commands shown are entered, R2 and R3 fail to establish the PVC. The R2 LMI is Cisco, and the R3 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?

The PVC to R3 must be point-to-point.
LMI types must match on each end of a PVC.
The ietf parameter is missing from the frame-relay map ip 10.10.10.3 203 command.
The PVCs at R2 use different encapsulation types. A single port can only support one encapsulation type.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.1.5 Frame Relay Address Mapping


23

Refer to the exhibit. A technician is teaching a trainee to interpret the results of various Frame Relay troubleshooting commands. What conclusion can be drawn from the output that is shown?

Neighboring routers should use DLCI 177 to reach the Branch router.
DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.
The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.
To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified by DLCI 177.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.1.5 Frame Relay Address Mapping


24

Refer to the exhibit. Which statement is true about the status of the Frame Relay connection?

The Frame Relay connection is in the process of negotiation.
Only packets with control bit DE set are sent over the PVC. No data traffic traverses the link.
Packets marked as FECN and BECN indicate that a congestion control mechanism is enabled on the Frame Relay PVC.
The “DLCI USAGE = LOCAL” status indicates that the PVC link is not established between the interface S0/0/0.1 and the Frame Relay switch.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
3.3.3 Frame Relay Flow Control


25 Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable to DSL or cable?

Wi-Fi
WiMAX
satellite
Metro Ethernet




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
1.3.5 Internet Connection Options


26 What are two characteristics of DSL technology? (Choose two.)

Uploads typically offer larger transfer rates than downloads.
Service providers deploy DSL in the local loop of the telephone network.
DSL download rates are reduced by large volumes of POTS voice traffic.
Filters and splitters allow POTS and DSL traffic to share the same medium.
DSL is a shared medium that allows many users to share bandwidth available from the DSLAM.




Observable Description Max Value
1 correctness of response Option 2 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
6.2.3 DSL


27

Refer to the exhibit. A packet is being sent from Host A to Host B through the VPN tunnel between R1 and R3. When the packet first arrives at R3, what are the source and destination IP addresses of the packet?

Source 192.168.1.2 - Destination 192.168.4.2
Source 192.168.3.1 - Destination 192.168.3.2
Source 192.168.2.1 - Destination 192.168.3.2
Source 192.168.3.1 - Destination 192.168.4.2




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
6.3.5 VPN Tunneling


28 What is a major characteristic of a worm?

malicious software that copies itself into other executable programs
tricks users into running the infected software
a set of computer instructions that lies dormant until triggered by a specific event
exploits vulnerabilities with the intent of propagating itself across a network




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.1.3 Types of Network Attacks


29 What is the function of an IDS?

to report the attack after it happens
to stop the attack prior to its completion
to quarantine the virus or worm so as not to infect any other host
to reconfigure the security policy of a firewall to prevent another attack




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.1.4 General Mitigation Techniques


30 When configuring remote access to a router, what is the significance of the no password command on a VTY line?

Logins are prevented on that line.
No password is required to log in to that line.
The remote user is not allowed to change the password for that line.
The remote user is prompted to change the line password after connecting to the router.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.2.4 Securing Remote Administrative Access to Routers


31 What will be the result of the enable secret command when added at the global configuration mode on the router?

It will use MD5 encryption to protect the privileged EXEC level access.
It will use type 7 encryption and will encrypt only the privileged EXEC level passwords.
It will use type 7 encryption to prevent all passwords that are displayed on the screen from being readable.
It will use MD5 encryption to protect the passwords that are only used in the PAP and CHAP authentication process.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.2.3 Manage Router Security


32

Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What action can help to isolate this problem?

Check that R1 has a route to the 10.10.10.0 network.
Verify that the TFTP server software supports binary file transfers.
Make sure that the TFTP server has 192.168.1.1 as its default gateway.
Ensure that the laptop has an IP address in the 192.168.1.0/24 network.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.5.4 Backing up and Upgrading Software Image


33 A network technician accidentally deleted the IOS image from flash and rebooted the router. Which two options can be used to restore the IOS image? (Choose two.)

Perform a system restore through SDM.
Download the image from a TFTP server through a network connection.
Download the image from a TFTP server through a console connection.
Establish an FTP session through an SSH connection for the image download.
Use the Xmodem protocol to download the image through a console connection.




Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.5.5 Recovering Software Images


34

Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the 192.168.2.0/24 network while still permitting Internet access for all networks. On which router interface and in which direction should it be applied?

interface fa0/0/0, inbound
interface fa0/0/0, outbound
interface fa0/0/1, inbound
interface fa0/0/1, outbound




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.1.8 Where to Place ACLs


35 What effect would the Router1(config-ext-nacl)# permit tcp 172.16.4.0 0.0.0.255 any eq www command have when implemented inbound on the f0/0 interface?

All TCP traffic is permitted, and all other traffic is denied.
The command is rejected by the router because it is incomplete.
All traffic from 172.16.4.0/24 is permitted anywhere on any port.
Traffic originating from 172.16.4.0/24 is permitted to all TCP port 80 destinations.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.3.4 Creating Named Extended ACLs


36

Refer to the exhibit. Which two statements correctly describe how Router1 processes an FTP request that enters interface S0/0/0 and is destined for an FTP server at IP address 192.168.1.5? (Choose two.)

The packet does not match an access list condition.
The router matches the incoming packet to the statement that is created from the access-list 201 permit ip any any command.
The router matches the incoming packet to the statement that is created from the access-list 101 permit ip any 192.168.1.0 0.0.0.255 command.
The router matches the incoming packet to the statement that is created from the access-list 201 deny icmp 192.168.1.0 0.0.0.255 any command.
The packet is allowed into Router1.




Observable Description Max Value
1 correctness of response Option 3 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.1.4 ACL Operation


37

Refer to the exhibit. An ACL numbered 101 already exists on this router. What happens if the network administrator issues the commands that are shown in the exhibit?

The new ACL overwrites the existing ACL.
The network administrator will receive an error message.
The existing ACL is modified to include the new commands.
A second ACL that is numbered 101 is created and contains only the new commands.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.2.5 Editing Numbered ACLs


38

Refer to the exhibit. What is the effect of the extended ACL when applied inbound on the S0/0/0 interface on R2?

All IP traffic will be permitted during the specified days and time range.
Both IP and Telnet traffic will be permitted during the specified days and time range.
Only Telnet traffic destined for 172.16.10.0/24 will be permitted during the specified days and time range.
Telnet traffic will be permitted only during the specified days and time range. All other network traffic will be permitted any time.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.4.4 Time-based ACLs


39 Which wildcard mask would specify all IP addresses from 192.168.8.0 through 192.168.15.255?

0.0.0.7
0.0.7.255
0.0.8.255
0.0.15.255
0.0.255.255




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.2.3 ACL Wildcard Masking


40

Refer to the exhibit. The SSH connections between the remote user and the server are failing. The correct configuration of NAT has been verified. What is the most likely cause of the problem?

SSH is unable to pass through NAT.
There are incorrect access control list entries.
The access list has the incorrect port number for SSH.
The ip helper command is required on S0/0/0 to allow inbound connections.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.4.5 Transport Layer Troubleshooting


41 A network administrator added two switches and a new VLAN over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?

Perform a baseline test and compare the current values to values that were obtained in previous weeks.
Interview departmental secretaries and determine if they think load time for web pages is improved.
Compare the hit counts on the company web server for the current week to the values that were recorded from previous weeks.
Performance on the intranet can be determined by monitoring load times of company web pages from remote sites.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.1.3 Why is Establishing a Network Baseline Important?


42 A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?

star
full mesh
hierarchical
partial mesh




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.3.4 WAN Topology Considerations


43

Refer to the exhibit. Router1 and Router2 each support separate areas of a data center, and are connected via a crossover cable. Resources attached to Router1 are unable to connect to resources attached to Router2. What is the likely cause?

The crossover cable is faulty.
The IP addressing is incorrect.
There is a Layer 2 problem with the router connection.
The upper layers are experiencing an unspecified problem.
One or both of the Ethernet interfaces are not working correctly.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.4.4 Network Layer Troubleshooting


44 An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what layer of the OSI model is the problem most likely to be found?

application
transport
network
data link




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.4.6 Application Layer Troubleshooting


45

Refer to the exhibit. A network technician has been called in to resolve a problem with this network segment. The symptoms include a loss of connectivity throughout the network segment, high link utilization, and syslog messages that indicate constant MAC address relearning. What is the likely cause of these symptoms?

cable fault
faulty NIC card
IP addressing error
spanning tree problem
NAT configuration error




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.4.3 Data Link Layer Troubleshooting


46

Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. VLSM is not being used. Which subnet mask will allow the most efficient utilization of IP addresses?

/21
/22
/23
/24
/25
/26




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.5.3 Troubleshooting Enterprise Networks 3


47

Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?

VLAN 1
VLAN 2
VLAN 11
VLAN 12
VLAN 30
VLAN 999




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.5.3 Troubleshooting Enterprise Networks 3


48

Refer to the exhibit. In the partial router configuration that is shown, what is the purpose of access list BLOCK_XYZ?

to prevent source IP address spoofing by hosts on the Fa0/0 LAN
to block access by Fa0/0 LAN hosts to all network services beyond the router
to prevent users on the Fa0/0 LAN from opening Telnet sessions on the router
to secure Fa0/0 hosts by allowing only locally sourced traffic into the Fa0/0 LAN




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
5.2.6 Creating Standard Named ACLs


49

Refer to the exhibit. Routers R1 and R2 are both configured for single area OSPF. Users who are connected to switch S1 are unable to access database applications that run on servers that are connected to S2. The network engineer is working remotely and only has the information that is shown in the exhibit to direct initial troubleshooting efforts. Based on the exhibit, which OSI layer is the most appropriate to start with for a divide-and-conquer approach?

network layer
application layer
data-link layer
physical layer




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
8.5.3 Troubleshooting Enterprise Networks 3


50

Refer to the exhibit. An administrator has added the exhibited commands to routers A and B, but no routing updates are exchanged between the two routers. Based on the information that is given, what is the likely cause of the problem?

Router A is advertising the wrong network.
The authentication key strings do not match.
The serial interfaces of routers A and B are not on the same network.
The authentication key numbers do not match the EIGRP process number for both routers.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: Accessing the WAN
4.3.2 Securing Routing Protocols

Wednesday, January 5, 2011

ESwitching Final Exam - FINAL - C

1

Refer to the exhibit. What would happen if the network administrator moved the network cable of Host A from interface Fa0/1 to Fa0/3 on switch SW1?

Host A remains a member of VLAN 10, because the router is routing traffic between VLANs.
Host A is no longer a member of VLAN 10, because port Fa0/3 has been manually assigned to VLAN 30.
Host A remains a member of VLAN 10, because the switch provides dynamic VLAN assignment for the port.
Host A maintains connectivity to all members of VLAN 10, because it is connected to the same physical network.
Host A is no longer a member of VLAN 10, but because port Fa0/3 was unused, it is now a member of VLAN 1.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.5.3 Troubleshooting VLAN Configurations


2 A network administrator is implementing VTP in a large campus LAN that contains one hundred switches. What are valid considerations for reliability and administration?

Using server mode on a single master switch and client mode on all other switches will provide the most fault tolerance for retaining VLAN information in all switches if power is lost on the network.
Using transparent mode on all switches will allow for efficient administration and prevent VLAN data loss from the loss of any single switch.
Configuring several switches in server mode will allow all VLANs to be entered from a single switch and preserve VLAN data if any of the switches or connections are lost.
Configuring one primary and one backup switch in server mode and all other switches in transparent mode will provide fault tolerance for the VLAN data and allow for efficient distribution of the VLAN configurations to all switches.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.3.1 Configuring VTP


3

Refer to the exhibit. Which Spanning Tree Protocol version is in effect?

Per VLAN Spanning Tree (PVST)
Per VLAN Spanning Tree + (PVST+)
Common Spanning Tree (CST)
Rapid Spanning Tree Protocol (RSTP)
Multiple Spanning Tree Protocol (MSTP)




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.4.3 RSTP


4

Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2. Hosts A, B, C, and D are correctly configured with IP addresses in the subnet range for VLAN 50. Host A can communicate with host B, but cannot communicate with host C or host D. What is the cause of this problem?

There is a native VLAN mismatch.
The Fa0/11 interface of Switch1 is not configured as a trunk.
The link between Switch1 and Switch2 is up but not trunked.
VLAN 50 is not allowed on the trunk link between Switch1 and Switch2.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.5 VTP Pruning


5

Refer to the exhibit. Both switches are interconnected via a trunk link. Host A and host B are on the default VLAN but are not able to exchange traffic. What should be done to fix the problem?

Allow all VLANs on the trunk link.
Remove the native VLAN from the trunk.
Include a router or switch with Layer 3 capabilities.
Configure the same native VLAN on both ends of the trunk.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.4.1 Common Problems with Trunks


6

Refer to the exhibit. A network administrator has segmented the network into two VLANs and configured Router1 for inter-VLAN routing. A test of the network, however, shows that hosts on each VLAN can only access local resources and not resources on the other VLAN. What is the most likely cause of this problem?

Switch port Fa0/1 is not trunking.
Router interface Fa0/0 is possibly down.
No routing protocol is configured on Router1.
One of the router subinterfaces is possibly down.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.3.1 Switch Configuration Issues


7

Refer to the exhibit. R1 is configured for traditional inter-VLAN routing. R1 can ping computer 3 but cannot ping computer 1. What is a possible cause for this failure?

S1 port Fa0/11 is in the wrong VLAN.
R1 does not have an active routing protocol.
The IP address of computer 1 is in the wrong logical network.
Router interface Fa0/0 has the wrong trunk encapsulation type configured.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.3.1 Switch Configuration Issues


8

Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal?

only hosts A and B
only hosts A, B, and C
only hosts A, B, C, and D
only hosts A, B, C, and E




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.1.2 Design Considerations for Ethernet/802.3 Networks


9

Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?

QoS
routing
trunking
VPN




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks


10

Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?

All the VLANs were pruned from the trunk port between SW1 and SW2.
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.
The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.3.2 Troubleshooting VTP Configurations


11 In which mode is a VTP switch operating if it has been configured to only forward VTP advertisements?

client
root
server
transparent




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.4 VTP Modes


12

Refer to the exhibit. Which switch will be elected as the root bridge of the spanning tree topology?

Cat-A
Cat-B
Cat-C
Cat-D




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.3.2 Step 1. Electing A Root Bridge


13 Which three statements are true regarding router-on-a-stick inter-VLAN routing? (Choose three.)

requires the use of subinterfaces on the router
requires an access link between the router and Layer 2 switch
more cost-efficient and scalable than using multiple physical interfaces
requires each subinterface to be configured with the no shutdown command
can impact performance if many VLANs compete for bandwidth on a single router interface
makes troubleshooting the inter-VLAN routing configuration much less complex than when using multiple physical interfaces




Observable Description Max Value
1 correctness of response Option 1, Option 3, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.2 Interfaces and Subinterfaces


14 What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)

requires less equipment
provides improved range
permits increased data rates
has a single-input and a single-output
needs no hardware upgrade for compatibility




Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.1.2 Wireless LAN Standards


15 Which parameter is used to uniquely identify one wireless network from another?

SSID
OFDM
WEP
DSSS




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.1.4 Wireless Operation


16

Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the same time. How do the hosts respond on the network? (Choose two.)

After the end of the jam signal, a backoff algorithm is invoked.
Hosts 1 and 4 are operating full duplex so no collision will exist.
The hub will block the port connected to Host 4 to prevent a collision.
Hosts 1 and 4 are assigned shorter backoff values to provide them priority to access the media.
If a host has data to transmit after the backoff period of that host, the host checks to determine if the line is idle before transmitting.




Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.1.1 Key Elements of Ethernet/802.3 Networks


17

Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campus environment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks. Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. How can the convergence time be reduced?

Increase the capacity of the distribution and core trunk links to 10 Gb/s.
Add a trunk link that directly connects D1 and D2.
Use Layer 3 switching on the core switch.
Implement Rapid Spanning Tree Protocol.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.4.3 RSTP


18 What happens when the crypto key zeroize rsa command is entered on a switch configured with the transport input ssh command on the vty lines?

A new RSA key pair is created.
The switch defaults to allowing Telnet connections only.
The switch is no longer able to make SSH connections as an SSH client.
The switch allows remote connections only after a new RSA key pair is generated.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.3 Configure Telnet and SSH


19

Refer to the exhibit. After entering the commands in the exhibit, the administrator receives a "password required, but none set" message when attempting to connect to S1. What is the problem?

The enable secret password was not set.
S1 does not have login configured on the vty lines.
S1 does not have a password configured for the vty lines.
The crypto key is not properly configured to generate passwords.
The VLAN1 interface has not be enabled with the no shutdown command.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.3 Configure Telnet and SSH


20

Refer to the exhibit. What happens when a frame from a source MAC address different from 00a8.d2e4.ba27 reaches switch port 0/5?

The frame is dropped.
The port is shut down.
An error message is displayed.
FastEthernet port 0/5 will show an err-disabled message.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.6 Configuring Port Security


21 What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?

only the management VLAN
all VLANs except the extended range VLANs
all VLANs except 1 and 1002-1005
all VLANs




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.5 VTP Pruning


22

Refer to the exhibit. What does STATIC indicate in the output that is shown?

Switch port Fa0/24 can only work in VLAN 99.
VLAN 99 was manually added to the VLAN database.
MAC address 0001.637b.b267 was learned from the source address of a frame that was received on switch port Fa0/24.
MAC address 0001.637b.b267 was manually associated with the switch port Fa0/24.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.6 Basic Switch Configuration


23 What are three benefits of employing a hierarchical network design? (Choose three.)

Hierarchically designed networks can more easily be expanded to suit future needs.
Hierarchical design models enhance existing bandwidth through the use of link aggregation.
The hierarchical model allows for specialized functionality at each layer, simplifying device management.
Use of a hierarchical design allows replacement of redundant devices with high-capacity network equipment.
A hierarchical design uses firewalls instead of complicated port-based and distribution layer security policies.
The hierarchical model allows the use of high-performance switches at all design layers, thus allowing for a fully-meshed topology.




Observable Description Max Value
1 correctness of response Option 1, Option 2, and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
1.1.2 Principles of Hierarchical Network Design


24 What provides an authentication mechanism for 802.11-based wireless networks?

DSSS
OFDM
SSID
WPA




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.1.4 Wireless Operation


25

Refer to the exhibit. VTP pruning is enabled in the VTP domain that is shown. How will switch ST-1 handle Layer 2 broadcast traffic originating from host A on switch ST-C?

It will be dropped.
It will be forwarded out port Fa0/5 only.
It will be forwarded out ports Fa0/5 and Fa0/10.
It will be forwarded out ports Fa0/5, Fa0/10, and Fa0/15.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.5 VTP Pruning


26 What is the purpose of the Spanning Tree algorithm?

It propagates VLAN configurations to other switches.
It restricts broadcast packets to a single VLAN.
It segments a network into multiple broadcast domains.
It prevents loops in a switched network with redundant paths.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.1 The Spanning Tree Algorithm


27

Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP address should be assigned to this new host?

192.168.1.11 /28
192.168.1.22 /28
192.168.1.33 /28
192.168.1.44 /28
192.168.1.55 /28




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.2 Interfaces and Subinterfaces


28

Refer to the exhibit. How will switch S2 manage traffic coming from host PC1?

S2 will drop the traffic, unless it is management traffic.
S2 will tag the frame with VLAN ID 99 when it forwards it over the trunk link.
S2 will leave the traffic untagged when it forwards it over a trunk link.
S2 will tag the traffic with the highest VLAN ID value when it forwards it over the trunk link.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks


29

Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.35 and a destination address of 192.168.1.85. What will the router do with this packet?

The router will drop the packet.
The router will forward the packet out interface FastEthernet 0/1.1.
The router will forward the packet out interface FastEthernet 0/1.2.
The router will forward the packet out interface FastEthernet 0/1.3.
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.2 Interfaces and Subinterfaces


30

Refer to the exhibit. Users A and B are reporting intermittent connectivity problems. Pre-installation surveys showed strong signal strength from the AP locations to the client locations. Outside electrical interference has been eliminated. What will fix the problem?

Relocate the APs closer to each other.
Increase the distance between the clients.
Change the channel on AP-B to 6 or 11.
Place AP-A and AP-B on the same wireless channel.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.4.2 Incorrect Channel Settings


31

Refer to the exhibit. A network administrator needs to download a previously saved configuration file from the TFTP server to Switch1. Which command will accomplish this task?

Switch1# copy tftp://192.168.0.253/backup-confg nvram:startup-config
Switch1# copy tftp://192.168.0.254/backup-confg nvram:startup-config
Switch1# copy nvram:startup-config tftp://192.168.0.253/backup-config
Switch1# copy nvram:startup-config tftp://192.168.0.254/backup-config




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.8 Basic Switch Management


32

Refer to the exhibit. Each switch is configured to participate in STP for VLANs 1, 10, 20, and 30. Which switch will become the root for VLAN 20?

A
B
C
D




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.4.2 PVST+


33

Refer to the exhibit. The commands are entered into switch SW1 as shown, and an 802.1q trunk is successfully established. How does switch SW1 handle the untagged traffic that is destined for the trunk?

SW1 will drop all untagged traffic.
SW1 will send all untagged traffic to VLAN 1.
SW1 will send all untagged traffic to VLAN 25.
SW1 will send untagged traffic to all VLANs that are configured on the trunk.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks
3.3.4 Configure a Trunk


34

Refer to the exhibit. If switch SW1 is configured with the four VLANs as shown in the exhibit, how many physical interfaces are needed on router R1 to configure inter-VLAN routing using subinterfaces?

zero
one
two
four




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.1 Introducing Inter-VLAN Routing


35 Which two devices can cause interference with the operation of a WLAN because they operate on similar frequencies? (Choose two.)

copier
AM radio
television
MP3 player
cordless phone
microwave oven




Observable Description Max Value
1 correctness of response Option 5 and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.4.3 Solve Access Point Radio and Firmware Issues


36 Which STP port type can only appear once on a segment, and must be present in order for traffic to flow on that segment?

non-root port
disabled port
designated port
non-designated port




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.3.4 Step 3. Electing Designated Ports and Non-Designated Ports


37 What is a possible impact of setting too short an aging time in the MAC address table of a switch?

overly large address table
unnecessary flooding of packets
excessive timeouts of static addresses
impaired ability to dynamically learn new addresses




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.6 Basic Switch Configuration


38 What is a result of improperly implementing a network with redundancy at Layer 2?

an increase of unicast and multicast errors at Layer 3
a decrease in the amount of broadcast traffic
end device malfunction because of broadcast storms
an increase in throughput at all points in the network




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.1.2 Issues with Redundancy


39 Which type of traffic can still be received on a switch interface that is in STP blocking mode?

BPDU frames
multicast frames
broadcast frames
Layer 3 packets




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.1 The Spanning Tree Algorithm


40 In a three-layer hierarchical network design, which distribution layer function delineates broadcast domains?

routing between VLANs
aggregating traffic flows
providing redundant links
reducing the network diameter




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
1.1.1 The Hierarchical Network Model


41 Which switching method provides error-free data transmission?

fragment-free
fast-forward
integrity-checking
store-and-forward




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.2.1 Switch Forwarding Methods


42 Which switch forwarding method should be used on a network that employs frame classification based on an assigned Quality of Service (QoS) value?

cut-through
fast-forward
fragment-free
store-and-forward




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.2.1 Switch Forwarding Methods


43

Refer to the exhibit. A network administrator issues the command shown on Switch1. What are two possible reasons that ports Fa0/1 through Fa0/4, and ports Fa0/11 and Fa0/12 do not show in the command output? (Choose two.)

The ports have been configured as trunks.
The ports have been assigned to the native VLAN.
The VLAN that they are assigned to has been deleted.
The ports currently do not have any devices plugged into them.
The no shutdown command was not issued on these ports.




Observable Description Max Value
1 correctness of response Option 1 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks
3.3.3 Managing VLANs


44 Which statement describes the use of voice VLANs in Cisco IP telephony?

The voice VLAN carries both tagged and untagged traffic.
The voice VLAN carries untagged traffic having special QoS markings.
The voice VLAN must be configured on the switch port to which the IP phone attaches.
Data and voice frames are tagged with same VLAN ID between the IP phone and the switch when a voice VLAN is configured.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.2 Types of VLANs


45

Refer to the exhibit. The broadcast traffic from PC1 is consuming bandwidth on the interswitch trunks. What should be done to prevent this from happening?

Move PC1 to a port on SW3.
Move PC2 to a port on SW3.
Move PC1 to a port on SW2.
Enable pruning for VLAN10 on the VTP server.
Associate PC1 as a member of a new VLAN.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.5 VTP Pruning


46

Refer to the exhibit. A junior network administrator was tasked to configure all VTY lines on the switch for remote access. However, when the senior network administrator attempted to access the switch remotely, a "% Error in authentication" console message was received. What could be the cause of the problem?

The VTY line password is entered incorrectly.
The console password is missing from the switch configuration.
The service password-encryption command is missing from the switch configuration.
The enable password or enable secret password is missing from the switch configuration.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.1 Configure Password Options


47 A network administrator issued the erase nvram: command on a switch. What will be the outcome of the command?

It will clear the contents of the MAC table.
It will clear the contents of the VLAN database.
It will clear the contents of the startup configuration file.
It will clear the contents of the running configuration file.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.8 Basic Switch Management


48 Which statement accurately describes a switch with all access ports assigned to the same VLAN?

All users are in the same broadcast domain.
A router is required for communication between the users.
Bandwidth is utilized more efficiently, resulting in a reduction in costs.
Performance is increased by keeping all users in the same Layer 2 network.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.2 Types of VLANs


49 A network administrator enters the enable command at the Switch> prompt of a new switch. What mode will the switch enter?

setup mode
configuration mode
privileged EXEC mode
user EXEC mode
ROMMON mode
interface mode




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.1 Navigating Command-Line Interface Modes


50 Which statement is true about open authentication when it is enabled on an access point?

requires no authentication
uses a 64-bit encryption algorithm
requires the use of an authentication server
requires a mutually agreed upon password




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.2.2 Wireless Security Protocols

ESwitching Final Exam - FINAL - B

1 Company policy requires disabling the command history buffer on network devices. An administrator enters terminal no history size at the command prompt on a Cisco Catalyst switch and receives no error messages back, but the command history buffer is still available. What is the problem?

The command contained a syntax error.
The Cisco IOS version does not support disabling the command history buffer.
The command history can only be disabled on a router, not a switch.
The size parameter reset the default buffer size but did not disable access to the buffer.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.3 Accessing the Command History


2

Refer to the exhibit. A network administrator configures HyperTerminal with the parameters shown but is unable to connect to a switch via the console port. The administrator is using a tested rollover cable attached to the only COM port on the computer, and the connections have been verified. What is the likely problem?

The cable is connected to the wrong port.
The wrong connection speed is selected.
The cable is the wrong type.
The flow control setting is not correct.
The stop bits should be set to zero.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.5 Prepare to Configure the Switch


3

Refer to the exhibit. What would happen if the network administrator moved the network cable of Host A from interface Fa0/1 to Fa0/3 on switch SW1?

Host A remains a member of VLAN 10, because the router is routing traffic between VLANs.
Host A is no longer a member of VLAN 10, because port Fa0/3 has been manually assigned to VLAN 30.
Host A remains a member of VLAN 10, because the switch provides dynamic VLAN assignment for the port.
Host A maintains connectivity to all members of VLAN 10, because it is connected to the same physical network.
Host A is no longer a member of VLAN 10, but because port Fa0/3 was unused, it is now a member of VLAN 1.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.5.3 Troubleshooting VLAN Configurations


4 What is the purpose of issuing the command switchport mode access on a switch interface?

disable port security
make the port operational
override the default port behavior
force the port to be a part of a single vlan




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.3.4 Configure a Trunk


5

Refer to the exhibit. Which Spanning Tree Protocol version is in effect?

Per VLAN Spanning Tree (PVST)
Per VLAN Spanning Tree + (PVST+)
Common Spanning Tree (CST)
Rapid Spanning Tree Protocol (RSTP)
Multiple Spanning Tree Protocol (MSTP)




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.4.3 RSTP


6

Refer to the exhibit. The devices in the network are operational and configured as indicated in the exhibit. However, hosts B and D cannot ping each other. What is the most likely cause of this problem?

The link between the switches is up but not trunked.
The Fa0/11 interface of Switch1 is not configured as a trunk.
Hosts B and D are configured with IP addresses from different subnets.
VLAN 20 and VLAN 30 are not allowed on the trunk between the switches.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.4 Controlling Broadcast Domains with VLANs


7

Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?

All the VLANs were pruned from the trunk port between SW1 and SW2.
SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.
VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.
The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.3.2 Troubleshooting VTP Configurations


8 In which mode is a VTP switch operating if it has been configured to only forward VTP advertisements?

client
root
server
transparent




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.4 VTP Modes


9 Which method establishes an administrative connection for configuring the Linksys WRT300N wireless access point?

Associate with the access point and then open a HyperTerminal session with the access point.
Physically connect to the access point and then reboot the computer to launch the configuration software.
From a computer in the same IP subnet as the access point, enter the default IP address of the access point in a web browser.
Modify the TCP/IP properties of the computer connected to the access point so that it exists on the same network, and then reboot your computer to establish a connection.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.3.1 Configuring the Wireless Access Point


10

Refer to the exhibit. Each switch is shown with its MAC address. Which switch will be elected as the spanning-tree root bridge if the switches are configured with their default priority values?

switch A
switch B
switch C
switch D
switch E
switch F




Observable Description Max Value
1 correctness of response 2 points for Option 6
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.3 Bridge ID


11 What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)

requires less equipment
provides improved range
permits increased data rates
has a single-input and a single-output
needs no hardware upgrade for compatibility




Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.1.2 Wireless LAN Standards


12 Which parameter is used to uniquely identify one wireless network from another?

SSID
OFDM
WEP
DSSS




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.1.4 Wireless Operation


13

Refer to the exhibit. What will be the result of the commands that are shown in the exhibit?

Only clients on VLAN 2 will be able to use DHCP for addressing.
DHCP server responses will only be permitted on interface Fa0/2.
Only 100 clients are permitted to request DHCP addresses on VLAN 2.
Client requests for DHCP addresses will be filtered out if the requests are not received on interface Fa0/2.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.4 Common Security Attacks


14 What is an efficient and cost effective way to minimize the frequency and effects of broadcast storms on an Ethernet LAN?

Connect each PC directly to a router port.
Use access control lists to filter broadcasts from the network.
Divide the computers into separate VLANs on the existing switches.
Divide the computers into separate workgroups using different physical switches.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.1 Introducing VLANs


15

Refer to the exhibit. After entering the commands in the exhibit, the administrator receives a "password required, but none set" message when attempting to connect to S1. What is the problem?

The enable secret password was not set.
S1 does not have login configured on the vty lines.
S1 does not have a password configured for the vty lines.
The crypto key is not properly configured to generate passwords.
The VLAN1 interface has not be enabled with the no shutdown command.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.3 Configure Telnet and SSH


16

Refer to the exhibit. Computer D sends a broadcast message. Which devices will process the broadcast message?

computer E
computer D and computer E
computer D, computer E, and Router1
computer B and computer E
computer B, computer E, and Router1
computer C, computer D, and computer E
computer C, computer D, computer E, and Router1
computer A, computer B, computer C, computer D, computer E, and Router1




Observable Description Max Value
1 correctness of response 2 points for Option 5
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.4 Controlling Broadcast Domains with VLANs


17

Refer to the exhibit. Hosts that are connected to switch SW1 are not able to communicate with hosts in the same VLAN that are connected to switch SW2. What should be done to fix the problem?

Introduce a Layer 3 device in the topology.
Configure both switches in VTP transparent mode to allow them to share VLAN information.
Reconfigure the fa0/1 interface on switch SW1 with a static trunk configuration.
Apply IP addresses that are in the same subnet to FastEthernet 0/1 on SW1 and FastEthernet 0/2 on SW2.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.3.4 Configure a Trunk


18

Refer to the exhibit. A network administrator needs to add IP phones to the network. To which devices should the IP phones connect?

AS1 and AS2
DS1 and DS2
DS1, DS2, and CS1
AS1, AS2, DS1, and DS2




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
1.1.1 The Hierarchical Network Model


19 What are two benefits of a hierarchical network model over a flat network design? (Choose two.)

reduced cost of equipment
increased network availability
elimination of equipment downtime
reduced size of the physical network layout
simplification of management and troubleshooting
elimination of the need for Layer 3 functionality




Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
1.1.2 Principles of Hierarchical Network Design


20

Refer to the exhibit. What is true of the configuration of switch S1?

Only VLAN 99 will be allowed to use the trunk links.
Switch ports Fa0/1 and Fa0/3 are configured with a standard trunking protocol.
Switch ports Fa0/1 and Fa0/3 should be configured as access ports to allow data from multiple VLANs to access switch S1.
The switch negotiated trunk links for interfaces Fa0/1 and Fa0/3 because all connected interfaces have been configured with the switchport mode dynamic auto command.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.3 Trunking Modes


21

Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?

This entry can only be removed from the MAC address table by a network administrator.
When forwarding a frame to the device with address 0060.5c5b.cd23, the switch does not have to perform a lookup to determine the final destination port.
Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18.
The switch learned this MAC address from the source address in a frame received on Fa0/18.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.6 Basic Switch Configuration


22

Refer to the exhibit. SW-T has been configured with a single trunking interface. Which VLANs will be allowed across the trunk?

Only VLAN 1 will be allowed across the trunk.
All configured VLANs will be allowed across the trunk.
Only the native VLAN will be allowed across the trunk.
Only the the management and native VLANs will be allowed across the trunk.
Only VLANs that are configured on the VTP server in the domain will be allowed across the trunk.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks


23

Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destination address of 192.168.1.161. What will the router do with this packet?

The router will drop the packet.
The router will forward the packet out interface FastEthernet 0/1.1.
The router will forward the packet out interface FastEthernet 0/1.2.
The router will forward the packet out interface FastEthernet 0/1.3.
The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet 0/1.3.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.2 Interfaces and Subinterfaces


24

Refer to the exhibit. A new host needs to be connected to VLAN 3. Which IP address should be assigned to this new host?

192.168.1.22 /28
192.168.1.31 /28
192.168.1.32 /28
192.168.1.52 /28
192.168.1.63 /28




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.1.2 Interfaces and Subinterfaces


25

Refer to the exhibit. VTP pruning is enabled in the VTP domain that is shown. How will switch ST-1 handle Layer 2 broadcast traffic originating from host A on switch ST-C?

It will be dropped.
It will be forwarded out port Fa0/5 only.
It will be forwarded out ports Fa0/5 and Fa0/10.
It will be forwarded out ports Fa0/5, Fa0/10, and Fa0/15.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.5 VTP Pruning


26 What is the purpose of the Spanning Tree algorithm?

It propagates VLAN configurations to other switches.
It restricts broadcast packets to a single VLAN.
It segments a network into multiple broadcast domains.
It prevents loops in a switched network with redundant paths.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.1 The Spanning Tree Algorithm


27

Refer to the exhibit. Switches S2 and S3 are properly connected using an ethernet cable. A network administrator has configured both switches with VTP, but S3 is unable to propagate VLANs to S2. What could be the reason for this?

The VTP configuration revision is different on both switches.
The VTP domains are different on both switches.
VTP pruning is disabled.
VTP v2 is disabled.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.1.1 What is VTP?


28 When configuring a router to act as an SSH server, what should be configured before issuing the crypto key generate rsa command?

the security domain name
the VTP domain name
the IP domain name
the host name




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.4.3 Configure Telnet and SSH


29

Refer to the exhibit. A network administrator has segmented the network into two VLANs. The connected hosts can only access resources in their own VLAN. What is the most scalable and cost effective solution to allow inter-VLAN communication in this network?

Replace S1 with a router that has one FastEthernet interface for each PC.
Add a second switch and divide the PCs so that each VLAN is connected to its own switch.
Configure a router with two subinterfaces on one of its FastEthernet ports and connect it to S1 using a trunk link.
Connect a router to a port on S1 and assign the IP address of VLAN1 to the connecting router interface.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.3.4 Configure a Trunk


30 Which three statements are correct concerning the default configuration of a new switch? (Choose three.)

It is configured in VTP server mode.
STP is automatically enabled.
The first VTY line is automatically configured to allow remote connections.
VLAN1 is configured with a management IP address.
All switch ports are assigned to VLAN1.
The enable password is configured as cisco.




Observable Description Max Value
1 correctness of response Option 1, Option 2, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.3.2 Configure a VLAN


31 What is the purpose of VLAN trunking?

It improves network performance by reducing broadcast traffic.
It selects the best path to transmit data in a switched network.
It carries the traffic of multiple VLANs through a single link.
It avoids spanning tree loops in a switched network.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks


32

Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. What configuration should be applied to SW2 so that it participates in the same VTP domain as switch SW1, receives VLAN information from SW1, and synchronizes VLAN information?

Disable VTP pruning on SW2.
Configure SW2 in VTP transparent mode.
Configure SW2 with the VTP domain password.
Configure SW2 as a VTP server with a higher revision number.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.3.1 Configuring VTP


33

Refer to the exhibit. Users A and B are reporting intermittent connectivity problems. Pre-installation surveys showed strong signal strength from the AP locations to the client locations. Outside electrical interference has been eliminated. What will fix the problem?

Relocate the APs closer to each other.
Increase the distance between the clients.
Change the channel on AP-B to 6 or 11.
Place AP-A and AP-B on the same wireless channel.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.4.2 Incorrect Channel Settings


34

Refer to the exhibit. What is the maximum number of VLANs that can be deleted from the Switch as it is configured?

zero
four
five
eight
nine




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.1.1 Introducing VLANs


35 Why is MAC address filtering considered a poor choice in securing a WLAN?

Available bandwidth is reduced.
MAC addresses are easily spoofed.
APs are more susceptible to DoS attacks.
The payload encryption is easily broken.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.2.3 Securing a Wireless LAN


36 What can an administrator do to ensure that a specific switch will win a root election if all switches are set to their default configurations?

Set the bridge priority to 16384.
Change the VTP mode to server.
Assign a port priority of 128 for all ports on the switch.
Configure a loopback interface with the highest IP address.




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.3 Bridge ID


37 RSTP is enabled in a switched network that is active and converged. Which switch port type assumes a discarding state on non-root switches?

root port
edge port
alternate port
designated port




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.4.6 RSTP Port States and Port Roles


38 What is a result of improperly implementing a network with redundancy at Layer 2?

an increase of unicast and multicast errors at Layer 3
a decrease in the amount of broadcast traffic
end device malfunction because of broadcast storms
an increase in throughput at all points in the network




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.1.2 Issues with Redundancy


39 What information in an Ethernet frame is used by a Layer 2 switch to build its address table?

source IP address
source MAC address
destination IP address
destination MAC address




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.1.1 Key Elements of Ethernet/802.3 Networks


40 Which switch forwarding method should be used on a network that employs frame classification based on an assigned Quality of Service (QoS) value?

cut-through
fast-forward
fragment-free
store-and-forward




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.2.1 Switch Forwarding Methods


41 Which two conditions would require a VTP client to send a request advertisement to a VTP server? (Choose two.)

The switch has been reset.
A VLAN has been created or deleted.
A five minute time period has elapsed.
The name of a VLAN has been changed.
The VTP domain name has been changed.




Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
4.2.3 VTP Advertising


42

Refer to the exhibit. A network administrator is configuring RT1 for inter-VLAN routing. The switch is configured correctly and is functional. Host1, Host2, and Host3 cannot communicate with each other. Based on the router configuration, what is causing the problem?

Interface Fa0/0 is missing IP address configuration information.
IP addresses on the subinterfaces are incorrectly matched to the VLANs.
Each subinterface of Fa0/0 needs separate no shutdown commands.
Routers do not support 892.1Q encapsulation on subinterfaces.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
6.2.2 Configure Router-on-a-Stick Inter-VLAN Routing


43

Refer to the exhibit. PC1 and PC2 are plugged into port Fa0/10 and Fa0/11 respectively. How will this affect the port states of these switch ports?

The ports will transition from blocking to learning immediately.
The ports will transition from blocking to listening and learning states.
The ports will transition from blocking to forwarding state immediately.
The ports will transition from blocking to listening, learning, and forwarding states.




Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.2.5 STP Port States and BPDU Timers


44

Refer to the exhibit. To ensure optimum network performance, it is desirable that every user PC should be able to reach the file server by passing through no more than 2 switches. Which command in which context satisfies this performance requirement?

spanning-tree vlan 10 root primary on SW1
spanning-tree vlan 10 root primary on SW3
spanning-tree vlan 10 priority 32768 on SW1
spanning-tree vlan 10 root secondary on SW2




Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
5.3.2 Step 1. Electing A Root Bridge


45 Which IEEE trunking protocol is used to encapsulate data traffic over a trunk link on a Cisco switch?

STP
DTP
VTP
802.1Q




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.2.1 VLAN Trunks


46

Refer to the exhibit. The network administrator needs to remove the east-hosts VLAN and use the switch port from that VLAN in one of the existing VLANs. Which two sets of commands should be used when completely removing VLAN 2 from S1-Central while leaving the switch and all its interfaces operational? (Choose two.)

S1-Central# reload

S1-Central# erase flash:

S1-Central# delete flash:vlan.dat

S1-Central# configure terminal
S1-Central(config)# no vlan 2

S1-Central# configure terminal
S1-Central(config)# interface fastethernet 0/1
S1-Central(config-if)# switchport access vlan 3





Observable Description Max Value
1 correctness of response Option 4 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
3.3.3 Managing VLANs


47

Refer to the exhibit. What is the effect of setting the security mode to WEP on the Linksys integrated router?

WEP identifies the wireless LAN.
WEP allows the access point to inform clients of its presence.
WEP translates IP addresses into easy-to-remember domain names.
WEP encrypts data between the wireless client and the access point.
WEP translates an internal address or group of addresses into an outside, public address.




Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
7.3.1 Configuring the Wireless Access Point


48

Refer to the exhibit. Host A and host B are not able to send traffic to each other. On the basis of the output that is provided, what is the cause of the problem?

mismatched speed settings
mismatched duplex settings
media type incompatibility
incorrect port encapsulation




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.6 Basic Switch Configuration


49 Which three actions are performed during the boot sequence of a Cisco switch? (Choose three.)

The boot loader uses the self-contained switch operating system to boot the switch.
The boot loader retrieves diagnostics routines via TFTP.
The boot loader performs POST.
The boot loader is loaded from RAM.
The boot loader initializes the flash file system that is used to boot the system.
The boot loader loads the default operating system if the flash-based operating system is corrupt or missing.




Observable Description Max Value
1 correctness of response Option 3, Option 5, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.3.4 The Switch Boot Sequence


50 What advantage does cut-through switching provide?

It enables QoS
It forwards frames quickly.
It provides an analysis of frames.
It allows reduction of traffic by using error checking to drop corrupt frames.




Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2

This item references content from the following areas:
CCNA Exploration: LAN Switching and Wireless
2.2.1 Switch Forwarding Methods