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After working on a router, some problems arise and you wish

题目
单选题
After working on a router, some problems arise and you wish to view the commands that you recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?（）
A

Show history

B

Show buffers

C

Show typed commands

D

Show terminal buffer

E

Show command

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相似问题和答案

第1题：

After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?

A．Hardware failure in NVRAM prevents the router from loading the config

B．Startup-config in flash is corrupt and cannot be analyzed

C．Router configuration-register set to bypass startup configuration

D．Startup-config in NVRAM is corrupt and cannot be analyzed

E．None of the above


正确答案：C
解析：Explanation:
The default configuration-register setting of 0x2102 loads the IOS from flash and the configuration from NVRAM.
However, for password recovery, you can set the register to 0x2142 and the startup-config file in NVRAM will be bypassed. The problem described here is that the config register was not changed back to 0x2102 before the router was rebooted, so the active configuration is bypassed. Simply setting the config register back to 0x2102 will fix this problem.

Incorrect Answers:
A, B, D. All of these describe hardware or software errors. In the event that this is the problem, errors will be generated and the router will fail to boot properly. In these cases, the router will not return to the initial startup configuration.

第2题：

()you wish to know why we have placed no further orders with you recently, we are willing to raise a matter that caused us some trouble .

A. since

B. though

C. as

D. although


正确答案：C

第3题：

After working on a router, some problems arise and you wish to view the commands that you recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?

A. Show history

B. Show buffers

C. Show typed commands

D. Show terminal buffer

E. Show command

F. None of the above


正确答案：A
A 解析：Explanation:
The router will buffer previously entered commands. By default, the "show history" command will display the previous ten commands that were entered. To see the contents of the buffer you enter the show history command.

Incorrect Answers:
B. This command will show the memory buffer information
C, D. These are invalid commands.

第4题：

You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds.What could be the cause of this problem?（）

A. OSPF authentication errors between some of the routers

B. Two routers have the same OSPF router ID

C. Issues with mistuned OSPF timers

D. OSPF LSA pacing issues between some of the routers

E. OSPF neighbor adjacency problems between some of the routers


参考答案：B

第5题：

After implementing EIGRP on your network, you issue the show ip eigrp traffic command on router C. The following output is shown:What information can you determine about this network?()

A. The network is stable

B. There is a flapping link or interface, and router C knows an alternate path to the network

C. There is a flapping link or interf ace, and router C does not know an alternate path to the network

D. EIGRP is not working correctly on router C

E. There is not enough information to make a determination


参考答案：B

第6题：

i wish i could give you the __________to your problems.

A. answer

B. end

C. reply

D. conclusion


参考答案：A

第7题：

According to your resume, you have had some experience working in a foreign company. May I ask you why you left?


正确答案：
   

第8题：

You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?

A．ROM Monitor mode

B．SETUP mode

C．Autoflash mode

D．RXBOOT mode

E．None of the above


正确答案：B
解析：Explanation:
Setup mode is a convenient mode that walks you through the setup procedure by prompting you with specific questions and options one by one.

第9题：

After implementing EIGRP on your network, you issue the show ip eigrp traffic command on router C. The following output is shown:What can you conclude about this network? ()

A. The network has been stable for at least the last 45 minutes

B. There is a flapping link or interf ace, and router C knows an alternate path to the network

C. There is a flapping link or interface, and router A does not know an alternate path to the network

D. EIGRP is not working correctly on router C

E. There is not enough information to make a determination


参考答案：A

第10题：

After attempting to telnet into a router, you are denied and you receive the error message "password required, but none set." What configuration changes will allow telnet access into this router?()

A.

B.

C.

D.


参考答案：C

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