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CompTIA XK0-005 certification exam covers a wide range of topics, including system architecture, Linux installation and package management, Linux command-line tools, scripting and automation, networking fundamentals, and security. XK0-005 Exam Objectives are designed to cover the key skills and knowledge required for a Linux system administrator. XK0-005 exam consists of multiple-choice questions, and candidates are given 90 minutes to complete the exam.

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CompTIA XK0-005 Exam evaluates the candidates' ability to perform tasks such as installation and configuration, system maintenance, command-line operations, and basic network management. XK0-005 exam covers various Linux distributions, including Ubuntu, Debian, CentOS, and SUSE. CompTIA Linux+ Certification Exam certification is vendor-neutral, which means it is not tied to any specific Linux distribution or technology.

CompTIA Linux+ Certification Exam Sample Questions (Q45-Q50):

NEW QUESTION # 45
A Linux systems administrator is trying to execute a particular shell script on a server. The administrator reviews the following outputs:
shell
$ ./startup.sh
bash: ./startup.sh: Permission denied
$ ls -l startup.sh
-rw-rw-r-- 1 companyabc companyabc 18 October 15:35 startup.sh
Which of the following commands should the administrator use to allow the script to run?

A. chmod 750 startup.sh
B. chmod -x startup.sh
C. chown root
startup.sh
D. chmod 400 startup.sh

Answer: A

Explanation:
The script is missing the execute permission. Using chmod 750 startup.sh adds execute permissions for the owner and grants read and execute permissions for the group, allowing the script to run. Without execute permissions, the shell cannot run the script.

NEW QUESTION # 46
An administrator deployed a Linux server that is running a web application on port 6379/tcp.
SELinux is in enforcing mode based on organization policies.
The port is open on the firewall.
Users who are trying to connect to a local instance of the web application receive Error 13, Permission denied.
The administrator ran some commands that resulted in the following output:

Which of the following commands should be used to resolve the issue?

A. semanage port -l -t http_port_tcp 6379
B. semanage port -a -t http_port_t -p tcp 6379
C. semanage port -d -t http_port_t -p tcp 6379
D. semanage port -a http_port_t -p top 6379

Answer: B

Explanation:
Explanation
The command semanage port -a -t http_port_t -p tcp 6379 adds a new port definition to the SELinux policy and assigns the type http_port_t to the port 6379/tcp. This allows the web application to run on this port and accept connections from users. This is the correct way to resolve the issue. The other options are incorrect because they either delete a port definition (-d), use the wrong protocol (top instead of tcp), or list the existing port definitions (-l). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 18:
Securing Linux Systems, page 535.

NEW QUESTION # 47
Users have been unable to reach www.comptia.org from a Linux server. A systems administrator is troubleshooting the issue and does the following:

Based on the information above, which of the following is causing the issue?

A. The server 192.168.168.53 is unreachable.
B. The name www.comptia.org does not point to a valid IP address.
C. No default route is set on the server.
D. The network interface eth0 is disconnected.

Answer: A

Explanation:
The issue is caused by the server 192.168.168.53 being unreachable. This server is the DNS server configured in the /etc/resolv.conf file, which is used to resolve domain names to IP addresses. The ping command shows that the server cannot be reached, and the nslookup command shows that the name www.comptia.org cannot be resolved using this server. The other options are incorrect because:
The name www.comptia.org does point to a valid IP address, as shown by the nslookup command using another DNS server (8.8.8.8).
The default route is set on the server, as shown by the ip route command, which shows a default gateway of
192.168.168.1.
The network interface eth0 is connected, as shown by the ip link command, which shows a state of UP for eth0. References: CompTIA Linux+ Study Guide, Fourth Edition, page 457-458, 461-462.

NEW QUESTION # 48
A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfigis as follows:

Which of the following commands BEST describes how the administrator should re-enable the network service?

A. chkconfig --level 0-6 network on
B. chkconfig --level 12 network on
C. chkconfig --level 0 network on
D. chkconfig --level 6 network on
E. chkconfig --level 345 network on

Answer: E

Explanation:
https://www.thegeekdiary.com/how-to-enable-or-disable-service-on-boot-with-chkconfig/

NEW QUESTION # 49
A Linux systems administrator is setting up a new web server and getting 404 - NOT FOUND errors while trying to access the web server pages from the browser. While working on the diagnosis of this issue, the Linux systems administrator executes the following commands:

Which of the following commands will BEST resolve this issue?

A. restorecon -R -v /var/www/html
B. setsebool -P httpd_can_network_connect_db on
C. sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
D. setenforce 0

Answer: A

NEW QUESTION # 50
......

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