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After logging into a router and typing in a few show command

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

It will recall the previous command line

B

It will move the cursor one line up

C

It will redisplay the current command line

D

It will capitalize the command line

E

None of the above

参考答案和解析
正确答案： B
解析： 暂无解析
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相似问题和答案

第1题：

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

A．It will recall the previous command line

B．It will move the cursor one line up

C．It will redisplay the current command line

D．It will capitalize the command line

E．None of the above


正确答案：A
解析：Explanation:
The up arrow key is used to recall the previous command line entry. The commands that were entered previously can be displayed by repeatedly pressing the up arrow key, or by entering the "show history" command.

第2题：

Which command will display all the EIGRP feasible successor routes known to a router?()

A. Router# show ip eigrp routes *

B. Router# show ip eigrp summary

C. Router# show ip eigrp topology

D. Router# show ip eigrp adjacencies

E. Router# show ip eigrp neighbors detail


参考答案：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：

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）

A. Issue the show ip route command on Router A

B. Issue the show ip route command on Router B

C. Issue the show cdp neighbors command on Router B

D. Issue the show cdp neighbors detail command on Router C

E. Issue the show arp command on Router A

F. Issue the show arp command on Router B


参考答案：D

第5题：

You wish to upgrade the IOS of a router without removing the image currently installed.What command will display the amount of memory that is being used by the current IOS image and whether there is enough room available to hold both the current and new images?（）

A. Router# show version

B. Router# show flash

C. Router# show memory

D. Router# show buffers

E. Router# show running-config

F. All of the above


参考答案：B

第6题：

Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?（）

A. show hosts

B. show sessions

C. show connections

D. disconnect

E. CTRL+SHIFT+6x

F. exit


参考答案：B, D

第7题：

After executing the "show host" command, which of the information below would you see?()

A. The IP addresses of workstations allowed gain access to the router via an access list

B. Permanent name-to-address mappings created using the ip host command.

C. Temporary and permanent DNS entries.

D. The names of the routers created using the hostname command.

E. The length of time of users logged into the router, as well as the duration


参考答案：B, D

第8题：

Which command will display the active configuration?()

A. user@router> show configuration

B. user@router# show

C. user@router> show system configuration

D. user@router> show system commit


参考答案：A

第9题：

After logging into the RtrB router, you issue the "show interface" command as displayed below:After considering the effects of the command output illustrated in the exhibit above,which of the following protocols are operational on the serial link?（）

A. PPP

B. IP

C. Compression

D. IPX

E. Multilink

F. ATX


参考答案：A, B

第10题：

Which Cisco IOS diagnostics command can disrupt the operation of a router under high－load conditions?()

A. show running-config

B. show processes cpu

C. debug all

D. logging host ip address


参考答案：C

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