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單項選擇題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

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1.單項選擇題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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2.單項選擇題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

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3.單項選擇題You just purchased a refurbished router that contains a configuration from a previous deployment. What should you do, before entering a new configuration into the router?（）

A. RAM should be erased and the router restarted.
B. Flash should be erased and the router restarted.
C. NVRAM should be erased and the router restarted.
D. The new configuration should be entered and saved.

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4.單項選擇題In the Cisco IOS, what is the definition of a global command?（）

A. A command that can be entered in any configuration mode.
B. A command that supports all protocols.
C. A command that is implemented in all IOS versions.
D. A command that is set once and affects the entire router.
E. A command that is available in every release of IOS.

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5.單項選擇題After logging into a router, you type in "enable" and then enter the correct password when prompted. What is the current router prompt symbol at this point?（）

A. >
B. #
C. ?
D. *
E. All of the above
F. None of the above

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