What output is produced by the following command sequence?
echo '1 2 3 4 5 6' | while read a b c; do
echo result $c $b $a;
done

• A.result: 6 5 4
• B.result: 1 2 3 4 5 6
• C.result: 3 4 5 6 2 1
• D.result: 6 5 4 3 2 1
• E.result: 3 2 1

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What command is used to hold keys during a login session to be used for automatic authentication while logging in to other machines using ssh?

• A.ssh-agent
• B.sshd
• C.ssh-keygen
• D.ssh-add

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What is the conventional purpose of Linux UIDs that are lower than 100?

• A.They are reserved for super user accounts.
• B.They are unused, aside from 0, because they are targets of exploits.
• C.They are reserved for system accounts.
• D.They are used to match with GIDs in grouping users.
• E.They are reserved for the system admin accounts.

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FILL BLANK
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

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Which of the following commands lists all defines variables and functions within Bash?

• A.env
• B.echo $ENV
• C.set
• D.env -a
• E.export

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