What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）A、0x2100B、0x2101C、0x2102D、0x2124E、0x2142

题目

What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）

A、0x2100
B、0x2101
C、0x2102
D、0x2124
E、0x2142

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相似问题和答案

第1题：

Which sequence of events describes the order used to restore normal router operation after experiencing a corrupted flash?()

A.A

B.B

C.C

D.D

参考答案：C

第2题：

What is the purpose of pressing the Ctrl＋Break keys during the router password recover procedure?()

A. To restart the router.

B. To bypass the configuration in Flash.

C. To view the password before changes are made.

D. To bypass setup configuration mode.

E. To access ROM Monitor mode.

参考答案：E

第3题：

You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:

o/r 0x2142

What is the purpose of this command?

A．It is used to restart the router.

B．It is used to bypass the configuration in NVRAM.

C．It is used to enter ROM Monitor mode.

D．It is used to view the lost password.

E．It is used to save the changes to the configuration.

正确答案：B
解析：Explanation:
Theo/r 0x2142 command changes the value of config-register to 2142 in a Cisco 2500 series router, so that the Router ignores the NVRAM contents and reverts to the initial setup configuration mode when it boots.

第4题：

After making changes to the router, you issue the "copy running-config startup-config" command to save changes. After reloading the router, the router comes up in setup mode. You again make changes, save them, and reboot. Again,the router comes up in setup mode.What is the most likely cause of this?（）

A. The NVRAM is corrupted.

B. The boot system commands were omitted in the configuration.

C. The configuration register setting is incorrect.

D. The upgraded configuration incompatible with the hardware platform.

E. The upgraded IOS incompatible with the hardware.

参考答案：C

第5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?()

参考答案：C

第6题：

What is the purpose of typing o／r 0x2142 during a password recover procedure on a 2500 series router?()

A. To restart the router.

B. To bypass the configuration in NVRAM.

C. To view the lost password.

D. To save the changes to the configuration.

E. To enter ROM Monitor mode.

参考答案：B

第7题：

What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? ()

A.0x2100

B.0x2101

C.0x2102

D.0x2124

E.0x2142

参考答案：C

第8题：

Why might the Ezonexam network administrator set the configuration register to 0x2142 on a 2600 series Cisco router?

A．To boot the IOS from ROM

B．To reset the console password

C．To upload a new version of the configuration file

D．To upload a new version of the IOS

E．To allow a new memory upgrade to be recognized by the router

正确答案：B
解析：Explanation:
About 99 percent of the time someone uses a config-register, it's more than likely because of a lost router password. The two config-registers for recovering passwords are 0x2102 and 0x2142.

The first config-register, 0x2102, is the normal config-register if you boot the router from internal Flash. You can see this config-register by using the show version command.

In this output, you'll notice the last line says, "Configuration register is 0x2102." This is normal.

But let's say you forgot the router's password. To recover this password (as long as it's unencrypted), boot the router and bypass the startup-config using config-register 0x2142; you should then be able to see the password in the startup-config. You can use the same method for encrypted passwords, but you'll need to overwrite the original password with a new one. To change the configuration register, enter the following:
Router(config)# config-register 0x2142

This will instruct the router to bypass the configuration and boot up as if it were a brand new router using factory default settings.

第9题：

A CCNA candidate is working on a 2600 Cisco router. The person needs to verify that the configuration register is set to boot the router IOS from flash memory and use the commands saved in the startup-configuration file.Which command will display this information, and what is the configuration register value that should be displayed?（）

A. show startup-config and 0x2142

B. show version and 0x2102

C. show flash and 0x2102

D. show version and 0x2142

E. show running-config and 0x2142

F. show flash and 0x2142

参考答案：B

第10题：

You are a senior network administrator at TestKing, and while performing thepassword recovery procedure on your 2500 series Cisco router, you type in thefollowing command:o/r 0x2142What is the purpose of this command?（）

A. It is used to restart the router.

B. It is used to bypass the configuration in NVRAM.

C. It is used to enter ROM Monitor mode.

D. It is used to view the lost password.

E. It is used to save the changes to the configuration.

参考答案：B

What should the configuration register value be after successfully completing the password recover procedure and returning the router to normal operation? （）A、0x2100B、0x2101C、0x2102D、0x2124E、0x2142

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