102-400 試験問題を無料オンラインアクセス

Which of the following commands puts the output of the command date into the shell variable mydate?

• A.mydate="date"
• B.mydate="$((date))"
• C.mydate="${date}"
• D.mydate="exec date"
• E.mydate="$(date)"

In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

• A.The cron daemon will refuse to start and report missing files in the system's logfile.
• B.When a user creates a user specific crontab the system administrator must approve it explicitly.
• C.Without additional configuration, all users may have user specific crontabs.
• D.Without additional configuration, no users may have user specific crontabs.

To prevent a specific user from scheduling tasks with at, what should the administrator do?

• A.Add the specific user to nojobs group.
• B.Add the specific user to /etc/at.allow file.
• C.Add the specific user to /etc/at.deny file.
• D.Run the following: atd --deny [user].
• E.Add the specific user to [deny] section in the /etc/atd.conf file.

Which of the following steps prevents a user from obtaining an interactive login session?

• A.Run the command chsh -s /bin/false with the user name.
• B.Add the user to /etc/noaccess.
• C.Remove the user from the group staff.
• D.Create a .nologin file in the user's home directory.
• E.Set the UID for the user to 0.

CORRECT TEXT
Which command, depending on its options, can display the open network connections, the routing tables, as well as network interface statistics. (Specify ONLY the command without any path or parameters.)