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NEW QUESTION # 80
Which of the following is observed and corrected by a NTP client?
- A. The skew in time between the system clock and the reference clock.
- B. Changes in the time zone of the current computer's location.
- C. Adjustments needed to support Daylight Saving Time.
- D. The skew in time between the system clock and the hardware clock.
Answer: A
NEW QUESTION # 81
Each entry in a crontab must end with what character?
- A. Space
- B. Newline
- C. Backslash
- D. Tab
Answer: B
NEW QUESTION # 82
What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)
- A. sysctl ipv4.default_gw=0
- B. netstat -r default
- C. route del default
- D. ifconfig unset default
- E. ip route del default
Answer: C,E
NEW QUESTION # 83
Which parameter must be passed to ifconfig to activate a previously inactive network interface?
(Specify the parameter only without any command, path or additional options)
Answer:
Explanation:
up
NEW QUESTION # 84
What output does the command seq 1 5 20 produce?
- A. 1
- B. 0
- C. 1
- D. 1
- E. 2
Answer: C
NEW QUESTION # 85
Which of the following features are provided by SPICE? (Choose two.)
- A. Downloading and locally installing applications from a remote machine.
- B. Connecting local USB devices to remote applications.
- C. Uploading and running a binary program on a remote machine.
- D. Accessing graphical applications on a remote host.
- E. Replacing Xorg as local X11 server.
Answer: A,B
NEW QUESTION # 86
Which of the following files is not read directly by a Bash login shell?
- A. ~/.bash_profile
- B. ~/.profile
- C. ~/.bashrc
- D. /etc/profile
- E. ~/.bash_login
Answer: C
NEW QUESTION # 87
In an xinetd configuration file, which attribute specifies the network address that will be used to provide the service?
Answer:
Explanation:
bind
NEW QUESTION # 88
How do shadow passwords improve the password security in comparison to standard no-shadow password?
- A. The system's host key is used to encrypt all shadow passwords.
- B. Shadow passwords are always combined with a public key that has to match the user's private key.
- C. Regular users do not have access to the password hashes of shadow passwords.
- D. Every shadow password is valid for 45 days and must be changed afterwards.
- E. Shadow passwords are stored in plain text and can be checked for weak passwords.
Answer: C
NEW QUESTION # 89
To prevent a specific user from scheduling tasks with at, what should the administrator do?
- A. Add the specific user to /etc/at.deny file.
- B. Add the specific user to nojobs group.
- C. Run the following: atd --deny [user].
- D. Add the specific user to [deny] section in the /etc/atd.conf file.
- E. Add the specific user to /etc/at.allow file.
Answer: A
NEW QUESTION # 90
Which of the following commands shows the current color depth of the X Server?
- A. xcd
- B. xcdepth
- C. xcolordepth
- D. xwininfo
- E. cat /etc/X11
Answer: D
NEW QUESTION # 91
Which TWO statements about crontab are true?
- A. Every user may have their own crontab.
- B. A cron daemon must run for each existing crontab.
- C. Changing a crontab requires a reload/restart of the cron daemon.
- D. hourly is the same as "0 * * * *".
- E. The cron daemon reloads crontab files automatically when necessary.
Answer: A,E
Explanation:
A). It is true that every user may have their own crontab. This allows individual users to schedule tasks to be run at specific times without requiring administrative privileges1.
C). The cron daemon does indeed reload crontab files automatically when necessary. This means that after editing a crontab file, there is no need to manually restart the cron service for the changes to take effect1.
References:
* 107.2 Lesson 1 - Linux Professional Institute Certification Programs, which covers the automation of system administration tasks by scheduling jobs with cron.
* The LPIC2 Exam Prep, which provides additional information on the LPIC-2 objectives and topics
* related to crontab and cron daemon.
NEW QUESTION # 92
How does the ping command work by default?
- A. It sends a TCP SYN packet to a remote host and waits to receive an TCP ACK response in return.
- B. Is sends an ICMP Echo Request to a remote host and waits to receive an ICMP Echo Response in return.
- C. Is sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system.
- D. It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return.
- E. It sends an ARP request to a remote host and waits to receive an ARP response in return.
Answer: B
NEW QUESTION # 93
Which of the following nmcli subcommands exist? (Choose two.)
- A. nmcli ethernet
- B. nmcli connection
- C. nmcli device
- D. nmcli wifi
- E. nmcli address
Answer: B,C
NEW QUESTION # 94
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 between a line containing Section "SectionName" and a line containing EndSection.
- B. It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.
- C. It is placed between the tags <Section name="SectionName"> and </Section>
- D. It is placed in curly brackets as in Section SectionName { ... }.
- E. It is placed after the row [SectionName].
Answer: A
NEW QUESTION # 95
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.)
Answer:
Explanation:
server
Explanation:
The server option is used to configure a persistent association with a remote server or peer. It takes an argument that is either a host name or a numeric IP address of the NTP server. The ntpd daemon will periodically send NTP packets to the specified server and adjust the local clock according to the received responses. Multiple server options can be used to specify more than one NTP source. For example, the following lines in the /etc/ntp.conf file configure four external NTP sources:
server 0.asia.pool.ntp.org
server 0.oceania.pool.ntp.org
server 0.europe.pool.ntp.org
server 0.north-america.pool.ntp.org
References:
https://docs.ntpsec.org/latest/ntp_conf.html
https://vceguide.com/which-option-in-the-etc-ntp-conf-file-specifies-an-external-ntp-source-to-be-queried-for-tim
https://vceguide.com/which-option-in-the-etcntp-conf-file-specifies-an-external-ntp-source-to-be-queried-for-tim
NEW QUESTION # 96
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/host.conf
- E. /etc/profile
Answer: A
NEW QUESTION # 97
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