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單項選擇題

The following entry is in the /etc/host.equiv and /home/jsmith/.rhosts file on server Alpha:+ jsmith.What does this entry indicate?()

A.The user "jsmith" can use r-commands from any server to server Alpha system-wide
B.The user "jsmith" can use r-commands from server Alpha to any server system-wide
C.The user "jsmith" can use r-commands from server Alpha to any server with a /home/jsmith directory
D.The user "jsmith" can use r-commands from any server to server Alpha only in the /home/jsmith directory

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