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What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

A.

ssh --port 2222 example.com

B.

ssh -p 2222 example.com

C.

ssh -o Port=2222 example.com

D.

ssh -o GatewayPort=2222 example.com

E.

ssh example.com:2222

Which file lists which users can execute commands using sudo? (Specify the full name of the file, including path.)

On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)

Which directory holds the files that configure the xinetd service when using several configuration files instead of an integrated configuration file? (Specify the full path to the directory.)

Which of the following tasks can be accomplished using the command date? (Choose TWO correct answers.)

A.

Synchronize the hardware and system clocks.

B.

Output date and time in different formats.

C.

Set the system clock.

D.

Set the hardware clock.

E.

Update the time via NTP.

What is true regarding the command sendmail?

A.

With any MTA, the sendmail command must be run periodically by the cron daemon.

B.

All MTAs, including Postfix and Exim, provide a sendmail command.

C.

The sendmail command prints the MTAs queue history of which mails have been sent successfully.

D.

It is only available when the sendmail MTA is installed.

What is true about the ntpdate command?

A.

It is the primary management command for the NTP time server.

B.

It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds).

C.

It queries one or more NTP time servers and adjusts the system time accordingly.

D.

It sends the local system time to one or many remote NTP time servers for redistribution.

E.

It can be used by any user to set the user clock independently of the system clock.

What is the purpose of the command mailq?

A.

It fetches new emails from a remote server using POP3 or IMAP.

B.

It is a multi-user mailing list manager.

C.

It is a proprietary tool contained only in the qmail MTA.

D.

It queries the mail queue of the local MTA.

E.

It is a command-line based tool for reading and writing emails.

After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)