思科认证640-802模拟试卷3

Both bridges are switches are being used throughout the Ezonexam LAN. Which of the following statements are true regarding bridges and switches in this network?

(Choose 3)

A. Switches are primarily software based while bridges are hardware based.

B. Switches usually have a higher number of ports than most bridges.

C. Bridges are frequently faster than switches.

D. Bridges define broadcast domains while switches define collision domains.

E. Both bridges and switches forward Layer 2 broadcasts.

F. Both bridges and switches make forwarding decisions based on Layer 2 addresses.

When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements? Choose all the valid answer choices)

A. Bridges are faster than switches because they have fewer ports.

B. A switch is a multiport bridge,

C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame. received.

D. A bridge will forward a broadcast but a switch will not.

E. Bridges and switches increase the size of a collision domain.

F. None of the above statements are true.

You are experiencing intermittent issues relating to congestion within the Ezonexam network. What are the possible causes of congestion on this LAN? (Choose all that apply)

A. A broadcast domain with too many hosts.

B. Full duplex operation.

C. Broadcast storms.

D. Multicasting.

E. Network Segmentation.

F. Low bandwidth.

The Ezonexam network administrator wants to use a router named VE1 to segment the local network. What are some of the advantages of using VE1 to segment the network? (Choose two)

A. Routers generally cost less than switches

B. Filtering can occur based on Layer 3 information

C. Broadcasts are not forwarded across the router

D. Broadcasts are eliminated

E. Adding a router to the network decreases latency

F. Routers can generally support more LAN ports than switches

Which router console commands shown below are used to manage telnet sessions to other routers? (Select three)

A. EzonexamD# disconnect 3

B. EzonexamD# exit session 2

C. EzonexamD# kill connection 1

D. EzonexamD# show sessions

E. EzonexamD# show connection all

F. EzonexamD# resume 4

A Ezonexam router boots up in ROMMON mode. What is ROM Monitor (ROMMON)?

A. A memory component for storing the saved configuration file

B. A memory management tool

C. An operating system used for hardware troubleshooting and for password recovery

D. Temporary storage space for the router operating files

E. The source of the primary Cisco IOS software image

F. None of the above

You have a single Class C IP address and a point-to-point serial link that you want to implement VLSM on. Which subnet mask is the most efficient for this point to point link?

A. 255.255.255.0

B. 255.255.255.240

C. 255.255.255.248

D. 255.255.255.252

E. 255.255.255.254

F. None of the above

While working in setup mode, a configuration line is typed incorrectly. What should you do to exit setup mode, without executing or saving any of the mistakes you made? (Select two answer choices)

A. Type exit at the setup dialog.

B. Type close at the setup dialog.

C. Press the Ctrl-C key combination.

D. Press the Ctrl-X key combination.

E. Issue the copy startup-config command.

F. Issue the 'write e" command.

G. Issue the "write mem" command

In which circumstance are multiple copies of the same unicast frame. likely to be transmitted in the Ezonexam Switched LAN?

A. During high traffic periods

B. In an improperly implemented redundant topology

C. After broken links are re-established

D. When upper-layer protocols require high reliability

E. When a dual ring topology is in use

F. None of the above

During startup, router VE1 displays the following error message:

boot: cannot open "flash:"

What will VE1 do next?

A. It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.

B. It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.

C. It will attempt to locate the configuration file from a TFTP server. If this fails, it will load a limited configuration from ROM.

D. Because of damaged flash memory, the router will fail the POST.

E. It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.

F. None of the above

Which of the protocols below, operates at Layer 2 of the OSI model, and is used to maintain a loop-free network?

A. RIP

B. STP

C. IGRP

D. CDP

E. VTP

F. None of the above

Which line from the output of the show ip interface command indicates that there is a Layer 1 problem?

How can a Ezonexam administrator determine if a router has been configured when it is first powered up?

After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?