[Sep 03, 2024] Download Free Lpi 102-500 Real Exam Questions
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NEW QUESTION # 50
Why is the xhost program considered dangerous to use?
- A. It logs sensitive information to syslog.
- B. It is a graphical DNS tool with known exploits.
- C. It allows easy access to your X server by other users.
- D. It makes it difficult to uniquely identify a computer on the network.
- E. It makes your computer share network resources without any authentication.
Answer: C
NEW QUESTION # 51
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,
Answer:
Explanation:
/usr/sbin/sendmail, /usr/lib/sendmail
NEW QUESTION # 52
What is the purpose of the iconv command?
- A. It converts files from one character set to an other.
- B. It changes the mode of an inode in the ext4 filesystem.
- C. It displays additional meta information from icon files ending in .ico.
- D. It verifies that the root directory tree compiles to all conventions from the Filesystem Hierarchy Standard (FHS).
- E. It converts bitmap images from one format to another such as PNG to JPEG.
Answer: A
NEW QUESTION # 53
Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?
- A. 30 0-23 * * 0 myscript
- B. 0 0-23 * * 30 myscript
- C. 30 * * * 6 myscript
- D. 0 * * * 30 myscript
- E. 30 0 * * 0 myscript
Answer: A
NEW QUESTION # 54
With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)
Answer:
Explanation:
DISPLAY, $DISPLAY
NEW QUESTION # 55
FILL BLANK
What command is used to add OpenSSH private keys to a running ssh-agentinstance? (Specify the command name only without any path.)
Answer:
Explanation:
sh-add
NEW QUESTION # 56
Which mechanism does ssh use to interact with the SSH agent?
- A. Connecting to port 2222 which is used by the system-wide SSH agent.
- B. Starting ssh-agent as a child process for each ssh invocation.
- C. Creating an alias replacing ssh with calls to ssh-agent.
- D. Using the fixed socket .ssh-agent/ipc.
- E. Evaluating environment variables such as SSH_AUTH_SOCK.
Answer: E
NEW QUESTION # 57
Your senior systems administrator asks you to set up a new machine with Apache listening on port 8088.
Which Apache config file would you edit to change the default port to 8088?
- A. access.conf
- B. srm.conf
- C. httpd.conf
- D. inet.conf
Answer: C
NEW QUESTION # 58
What command will display the group names and GIDs to which a user belongs? (Provide only the command name with or without path information)
Answer:
Explanation:
/usr/bin/id
NEW QUESTION # 59
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
- A. The cron daemon will refuse to start and report missing files in the system's logfile.
- B. Without additional configuration, no users may have user specific crontabs.
- C. When a user creates a user specific crontab the system administrator must approve it explicitly.
- D. Without additional configuration, all users may have user specific crontabs.
Answer: B
NEW QUESTION # 60
What is true regarding public and private SSH keys? (Choose two.)
- A. The private key must never be revealed to anyone.
- B. To allow remote logins, the user's private key must be copied to the remote server.
- C. Several different public keys may be generated for the same private key.
- D. For each user account, there is exactly one key pair that can be used to log into that account.
- E. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
Answer: A,E
NEW QUESTION # 61
Depending on a system's configuration, which of the following files can be used to enable and disable network services running on this host?
- A. /etc/xinetd.conf
- B. /etc/ports
- C. /et/host.conf
- D. /etc/profile
- E. /etc/host.conf
Answer: A
NEW QUESTION # 62
Which of the commands below might have produced the following output?
- A. dig -t mx www.example.org
- B. dig -t ns www.example.org
- C. dig www.example.org
- D. dig -t soa www.example.org
- E. dig -t a www.example.org
Answer: C
NEW QUESTION # 63
Which of the following is a legacy program provided by CUPS for sending files to the printer queues on the command line?
- A. lpq
- B. lpr
- C. lpp
- D. lpd
Answer: B
NEW QUESTION # 64
Which of the following fields can be found in the /etc/group file? (Choose two.)
- A. The list of users that belong to the group.
- B. The home directory of the group.
- C. The description of the group.
- D. The default group ACL.
- E. The name of the group.
Answer: A,E
NEW QUESTION # 65
Which of the following parameters are used for journalctl to limit the time frame of the output?
(Choose two.)
- A. --from=
- B. --upto=
- C. --until=
- D. --since=
- E. --date=
Answer: C,D
NEW QUESTION # 66
The normal way of starting your Apache server would be the command:
- A. apache start
- B. apachestart -n
- C. http -start
- D. inetd apache
- E. apachectl start
Answer: E
NEW QUESTION # 67
Your senior administrator asked you to change the default background of his machine, which uses XDM. Which file would you edit to achieve this?
- A. /etc/X11/xdm/Xsetup
- B. /etc/X11/xdm/Defaults
- C. /etc/X11/defaults.conf
- D. /etc/X11/xdm.conf
Answer: A
NEW QUESTION # 68
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