单项选择题
You need to upgrade the IOS of an existing router on your network. The new IOS image is located on a TFTP server that you have set up within the network. What command should you issue in order to download the new IOS version?（）
A. Router# copy tftp flash
B. Router# copy flash run
C. Router(config)# restore flash
D. Router(config)# repair flash
E. Router#copy flash tftp
F. Router# copy start flash
相关考题
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单项选择题
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. -
多项选择题
Which of the following commands will display the name of the IOS image file being used in a Cisco router?（）
A. Router# show IOS
B. Router# show version
C. Router# show image
D. Router# show protocols
E. Router# show flash -
单项选择题
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.
