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思科认证考试(Cisco)CCNA考试七十九题(4)(1)

思科认证   点击:次   发布时间:2007-1-31   【字体: 】   来源:Gzu521.com
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31. which of the following will show you the clock?

a. cl? b. cl ? c. clock? d. clock ?

answer d. by typing this the router will finish the command and show the clock.

32. cdp operates at which layer?

a. transport b. network c. data link d. physical

answer c. cdp allows a network device to exchange frames with other directly
connected networked devices.

33. which command does not show two devices are not routing packets between them
successfully?

a. ping b. show interface c. trace d. telnet

answer a c d. with these commands you can tell whether or not you have
communication. show interface just verifies there is a connection

34. what keystrokes shows the possible commands in privilege mode?

a. help b. h c. ctrl+h d. ?

answer d. answers a and b will give a brief description when typed, and c is not
valid.

35. which two items contain versions of the router s configuration file?

a. flash b. nvram c. ram d. rom

answer b c. a and d contain the os.

36. which of the following commands will allow youto review the contents of ram?

a. show configuration b. show protocols c. show version
d. show running-config e. show startup-config

answer b c d. a and d allow you to see nvram.

37. which of the following will allow you to add, modify, or delete commands in the
startup configuration file?

a. show startup-config b. show running-config
c. configure terminal d. configure memory

answer d. answer c allows you to change items in the running configuration file

38. which command would be used to restore a configuratio n file to ram?
________tFtp running-config

a. router#copy b. router>copy
c. router*copy d. router^copy

answer a. you must be in privilege mode when executing this, which is why you see
the # sign.


39. which of the following commands will display the running configuration file to
a terminal?

a. show running-config b. show router-config
c. router#show flash d. router>show version

answer a. it can only be shown in privilege mode.

40. if you need to copy the currently executing configuration file into nvram,
which command would you use?

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