單項(xiàng)選擇題

What should an administrator do to allow the logon of a user to a local system without limitations from the host ‘webserver’?（）

A.configure the /etc/.rhosts with. webserver <user>
B.configure the root'$HOME/.rhost file with.+webserver <user>
C.configure each user's $HOME/.rhosts file with. webserver <user>
D.configure the root'$HOME/.rhost file with.<webserver ip> <user>

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單項(xiàng)選擇題

Which of the following can an operator use to shutdown a system into single-user mode?（）

A.shutdown -d
B.shutdown -s
C.shutdown -m
D.shutdown -Fr -s 1

單項(xiàng)選擇題

Where is the run date for an ‘a(chǎn)t’job located?（）

A.Within the job environment set up
B.Within the user data of the at job
C.In the file name preceeded with a userid
D.In a special file used by the cron daemon

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