Actual 102-500 Vce 2021

NEW QUESTION 1

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 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

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

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

Answer: B

NEW QUESTION 4

For accessibility assistance, which of the following programs is an on-screen keyboard?

• A. xkb
• B. atkb
• C. GOK
• D. xOSK

Answer: C

NEW QUESTION 5

Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.)https://lh3.googleusercontent.com/-5cd-clmKnbk/AAAAAAAAAAI/AAAAAAAAADM/-SXesH19Ido/s4

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/hosts.allow

NEW QUESTION 6

What entry can be added to the syslog.conf file to have all syslog messages generated by a system displayed on console 12?

• A. *.* /dev/tty12
• B. /var/log/messages | /dev/tty12
• C. | /dev/tty12
• D. syslog tty12
• E. mail.* /dev/tty12

Answer: A

NEW QUESTION 7

Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

• A. 0 * * * 30 myscript
• B. 30 * * * 6 myscript
• C. 30 0 * * 0 myscript
• D. 30 0-23 * * 0 myscript
• E. 0 0-23 * * 30 myscript

Answer: D

NEW QUESTION 8

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

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

Answer: A

NEW QUESTION 9

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.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
l

NEW QUESTION 10

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
1024

NEW QUESTION 11

Please specify the top directory containing the configuration files for the CUPS printing system. (Specify the full path to the directory.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/cups, /etc/cups/

NEW QUESTION 12

What is the purpose of a screen reader?

• A. It reads text displayed on the screen to blind or visually impaired people.
• B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.
• C. It displays lines and markers to help people use speed reading techniques.
• D. It manages and displays files that contain e-books.

Answer: A

NEW QUESTION 13

What is the purpose of the file /etc/profile?

• A. It contains the welcome message that is displayed after login.
• B. It contains security profiles defining which users are allowed to log in.
• C. It contains environment variables that are set when a user logs in.
• D. It contains default application profiles for users that run an application for the first time.

Answer: C

NEW QUESTION 14

An administrator wants to determine the geometry of a particular window in X, so she issues the_____ -metric command and then clicks on the window.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/usr/bin/xwininfo, xwininfo

NEW QUESTION 15

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.
• C. day, month and year) but not the time (i.
• D. hours, minutes, seconds).
• E. It queries one or more NTP time servers and adjusts the system time accordingly.
• F. It sends the local system time to one or many remote NTP time servers for redistribution.
• G. It can be used by any user to set the user clock independently of the system clock.

Answer: C

NEW QUESTION 16

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query?

• A. dnsq
• B. dig
• C. hostname
• D. dnslookup
• E. zoneinfo

Answer: B

NEW QUESTION 17

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?

• A. debug
• B. lsof
• C. nessus
• D. strace
• E. traceroute

Answer: B

NEW QUESTION 18

Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?

• A. tcpd
• B. inetd
• C. fingerd
• D. mountd
• E. xinetd

Answer: A

NEW QUESTION 19

Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

• A. ifconfig
• B. dig
• C. netstat
• D. route
• E. trackroute

Answer: CD

NEW QUESTION 20

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

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

Answer: C

NEW QUESTION 21
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