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單項選擇題

Which command returns a list of commands in which a given keyword is used throughout the Junos hierarchies?（）

A. help topic
B. help reference
C. help apropos
D. help tip

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多項選擇題

Which three commands will cause a logical interface to go administratively down after being committed?（）

A. shutdown
B. deactivate
C. disable
D. down
E. delete

單項選擇題

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