LPI 102-500 Cram 2021

NEW QUESTION 1

Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

• A. 2001:db8::15 www.example.com www
• B. www.example.com www 203.0.13.15
• C. 203.0.113.15 www.example.com www
• D. www.example.com,www 203.0.13.15,2001:db8::15
• E. 2003.0.113.15,2001:db8::15 www.example.com www

Answer: AC

NEW QUESTION 2

Which of the following commands shows the current color depth of the X Server?

• A. xcd
• B. xcdepth
• C. xwininfo
• D. xcolordepth
• E. cat /etc/X11

Answer: C

NEW QUESTION 3

Each entry in a crontab must end with what character?

• A. Tab
• B. Space
• C. Backslash
• D. Newline

Answer: D

NEW QUESTION 4

Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

• A. substitute
• B. nameserver
• C. search
• D. lookup
• E. method

Answer: BC

NEW QUESTION 5

Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes?

• A. core
• B. edquota
• C. ulimit
• D. quota

Answer: C

NEW QUESTION 6

What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
xorg.conf

NEW QUESTION 7

Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

• A. SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
• B. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
• C. COUNT(SELECT order_type FROM orders);
• D. SELECT COUNT(*) FROM orders ORDER BY order_type;
• E. SELECT AUTO_COUNT FROM orders COUNT order_type;

Answer: B

NEW QUESTION 8

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?

• A. cupsreject -c -r hello HPLaserjet4
• B. cupsreject -p -m hello HPLaserjet4
• C. cupsdisable -c -r hello HPLaserjet4
• D. cupsdisable -p -m hello HPLaserjet4

Answer: C

NEW QUESTION 9

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

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

Answer: A

NEW QUESTION 10

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

• A. Because the conversion of Unix timestamps to local time relies on the time zone configuration.
• B. Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.
• C. Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.
• D. Because NTP chooses servers nearby based on the configured time zone.

Answer: A

NEW QUESTION 11

Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
groupadd, /usr/sbin/groupadd

NEW QUESTION 12

On a system using shadowed passwords, the most correct permissions for /etc/passwd are _____ and the most correct permissions for /etc/shadow are ____.

• A. -rw-r-----, -r--------
• B. -rw-r--r--, -r--r--r--
• C. -rw-r--r--, -r--------
• D. -rw-r--rw-, -r-----r--
• E. -rw-------, -r--------

Answer: C

NEW QUESTION 13

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

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

Answer: A

NEW QUESTION 14

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

• A. The local routing information may be corrupted and must be re-validated using a routing protocol.
• B. One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.
• C. There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.
• D. DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Answer: D

NEW QUESTION 15

What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.)

• A. The user bob is removed from the system's user database.
• B. The user bob's home directory is removed.
• C. The locate database is updated to drop files owned by bob.
• D. All files owned by bob are remove from all mounted filesystems.
• E. In case bob was the last member of a group, that group is deleted.

Answer: AB

NEW QUESTION 16

What command displays all aliases defined in the current shell? (Specify the command without any path information)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
alias, alias -p

NEW QUESTION 17

Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?

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

Answer: B

NEW QUESTION 18

Which configuration file would be edited to change the default options for outbound SSH sessions?

• A. /etc/ssh/sshd_config
• B. /etc/ssh/ssh
• C. /etc/ssh/client
• D. /etc/ssh/ssh_config
• E. /etc/ssh/ssh_client

Answer: D

NEW QUESTION 19

Which command makes the shell variable named VARIABLE visible to subshells?

• A. export $VARIABLE
• B. export VARIABLE
• C. set $VARIABLE
• D. set VARIABLE
• E. env VARIABLE

Answer: B

NEW QUESTION 20

The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?

• A. It is placed in curly brackets as in Section SectionName { ... }.
• B. It is placed between a line containing Section "SectionName" and a line containing EndSection.
• C. It is placed between the tags <Section name="SectionName"> and </Section>
• D. It is placed after the row [SectionName].
• E. It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.

Answer: B

NEW QUESTION 21

By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/skel

NEW QUESTION 22

Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify ONLY the option without any values or parameters.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
server

NEW QUESTION 23
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