Which command will set the local machine's timezone to UTC?

ln -s /usr/share/zoneinfo/UTC /etc/localtime

Why is /etc/shadow not world readable if the passwords are stored in an encrypted fashion?

The encrypted passwords are still subject to brute force attacks.

This is just for historical reasons.

There is other information in the file that needs to be kept secret.

The passwords can be decrypted by anyone with root access.

Of the ways listed, which is the best way to temporarily suspend a single user's ability to interactively login?

Use change to expire the user account.

Add the user name to /etc/nologin.

Change the user name in /etc/passwd.

Use change to expire the user account.

Place the command logout in the user's profile.

Which TWO statements about crontab are true?

Every user may have their own crontab.

The cron daemon reloads crontab files automatically when necessary.

Every user may have their own crontab.

Changing a crontab requires a reload/restart of the cron daemon.

The cron daemon reloads crontab files automatically when necessary.

hourly is the same as "0 * * * *".

A cron daemon must run for each existing crontab.

Which crontab entry could be used to set the system time at regular intervals?

1 0 * * * ntpdate ntp1.digex.net

1 0 * * * runcron date ntp1.digex.net

After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

lpq,/usr/bin/lpq, lpstat,/usr/bin/lpstat

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

Output date and time in different formats.

Synchronize the hardware and system clocks.

Output date and time in different formats.

What is the purpose of the command mailq?

It queries the mail queue of the local MTA.

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

It is a multi-user mailing list manager.

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

It queries the mail queue of the local MTA.

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

What is true regarding the command sendmail?

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

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

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

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

It is only available when the sendmail MTA is installed.

Why is the correct configuration of a system's time zone important?

Because the conversion of Unix timestamps to local time relies on the time zone configuration.

Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.

Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.

Because NTP chooses servers nearby based on the configured time zone.

Which of the following is observed and corrected by a NTP client?

The skew in time between the system clock and the reference clock.

The skew in time between the system clock and the hardware clock.

The skew in time between the system clock and the reference clock.

Changes in the time zone of the current computer's location.

Adjustments needed to support Daylight Saving Time.

Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)

hwclock,/sbin/hwclock,/usr/sbin/hwclock

Which command, available with all MTAs, is used to list the contents of the MTA's mail queue?(Specify ONLY the command without any path or parameters.)

mailq,/usr/bin/mailq, sendmail -bp,/usr/sbin/sendmail - bp, /usr/lib/sendmail -bp sendmail, /usr/sbin/sendmail, /usr/lib/sendmail

What is true about the ntpdate command?

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

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

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

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

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

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

What is true regarding the file ~/.forward?

When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.

As it is owned by the MTA and not writable by the user, it must be edited using the editaliases command.

After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.

Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.

When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.

You need to pause the CUPS printer HPLaserjet4, and you want to cancel all print jobs with a message, "hello". Which command will do this?

cupsdisable -c -r hello HPLaserjet4

cupsreject -c -r hello HPLaserjet4

cupsreject -p -m hello HPLaserjet4

cupsdisable -c -r hello HPLaserjet4

cupsdisable -p -m hello HPLaserjet4

What is pool.ntp.org?

A virtual cluster of various timeservers

A deprecated feature for maintaining system time in the Linux kernel

A website which provides binary and source packages for the OpenNTPD project

A virtual cluster of various timeservers

A community website used to discuss the localization of Linux

What is the purpose of the nsswitch.conf file?

It is used to configure where the C library looks for system information such as host names and user passwords.

It is used to configure network protocol port numbers such as for HTTP or SMTP.

It is used to configure LDAP authentication services for the local system.

It is used to configure which network services will be turned on during the next system boot.

LPI 102-500 Practice Test 3 - Free Online Exam Questions 81-120

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

LPI 102-500 Practice Test 3

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