多选题A network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change?（）AThe IOS image will be ignored.BThe router will prompt to enter initial configuration mode.CThe router will boot t

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多选题

A network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change?（）

The IOS image will be ignored.

The router will prompt to enter initial configuration mode.

The router will boot to ROM.

Any configuration entries in NVRAM will be ignored.

The configuration in flash memory will be booted.

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相似问题和答案

第1题：

Which of the following should an administrator do after running a command from the console onthe perimeter router?()

A. Update the configuration logs

B. Update the network wiring schematics

C. Update the network configuration procedures

D. Compare the configuration with the baseline

参考答案：A

第2题：

The TestKing.com administrator has made changes to the router configuration but cannot remember if those changes were saved. Which of the following commands allows the administrator to see the configuration that will load when the router is restarted?（）

A. TestKingC# show memory

B. TestKingC# show startup-config

C. TestKingC# show running-config

D. TestKingC# show restart

参考答案：B

第3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4题：

A、TestKingC# show memory
B、TestKingC# show startup-config
C、TestKingC# show running-config
D、TestKingC# show restart

正确答案:B

第5题：

Which two are advantages of static routing when compared to dynamic routing?()

A.Security increases because only the network administrator may change the routing tables

B.Configuration complexity decreases as network size increases

C.Routing updates are automatically sent to neighbors

D.Route summarization is compued automatically by the router

E.Routing traffic load is reduced when used in stub network links

F.An efficient algorithm is used to build routing tables,using automatic updates

G.Routing tables adapt automatically to topology changes.

参考答案：A, E

第6题：

You use two user accounts for your computer: standard user and administrator. You log on to your computer as standard user but are unable to make advanced configuration changes. You need to make advanced configuration changes while you are logged on as a standard user.What should you do?（）

A.A

B.B

C.C

D.D

参考答案：C

第7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 network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change?()

A. The IOS image will be ignored.

B. The router will prompt to enter initial configuration mode.

C. The router will boot to ROM.

D. Any configuration entries in NVRAM will be ignored.

E. The configuration in flash memory will be booted.

参考答案：B, D

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.

正确答案:B

A network administrator changes the configuration register t

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