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單項選擇題

A system administrator has been asked to lock a specific login account. Which of the following commands is used to accomplish this？（）

A.pwdck
B.usrck
C.chuser
D.rmuser

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單項選擇題

A user would like their shell prompt to reflect the current directory. Which of the following environment variables can be set to accomplish this？（）

A.PS1
B.PATH
C.PROMPT
D.LOCPATH

單項選擇題

Which of the following commands can be used to get the system ready to physically insert a PCI hot plug adaptor？（）

A.mkdev
B.cfmgr
C.drslot
D.lsslot