CompTIA XK0-005 Online Practice Questions and Exam Preparation

CompTIA XK0-005 Online Questions & Answers

• Question 221:

  A systems administrator is tasked with configuring a repository on an RPM-based Linux system. Which of the following need to be reviewed and modified? (Select two).

  A. /etc/yum.conf
  B. /etc/apt/sources.list.d
  C. /etc/pam.d
  D. /etc/apt.conf
  E. /etc/yum.repos.d
  F. /etc/ssh/ssh_config
  A. /etc/yum.conf
  E. /etc/yum.repos.d

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  Explanation

  On RPM-based systems like Red Hat or CentOS, repository configuration is handled via yum or dnf. The main configuration file is /etc/yum.conf, while individual repository files are stored in /etc/yum.repos.d/. These files dictate where packages are fetched from.

• Question 222:

  A systems administrator is working on an SFTP server configuration.

  Which of the following commands will best enable the connectivity to that service from the 10.10.0.0/24 network?

  A. sudo ufw allow from 10.10.0.0/24 to any port 22
  B. sudo ufw allow in on eth0 to any port 22
  C. sudo ufw allow from 10.10.0.0/24
  D. sudo ufw allow 0:22/tcp from 10.10.0.0
  A. sudo ufw allow from 10.10.0.0/24 to any port 22

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  Explanation

• Question 223:

  An administrator is provisioning an Apache web server. When the administrator visits the server website, the browser displays a message indicating the website cannot be reached. Which of the following commands should the administrator use to verify whether the service Is running?

  A. systemctlstatus httpd
  B. systemctlmask httpd
  C. systemctlreload httpd
  D. systemctlrestart httpd
  A. systemctlstatus httpd

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  Explanation

  systemctl status httpd is the correct option to check if the Apache web server (httpd) is running. The systemctl status command provides detailed information about the service, including whether it is active and running.

• Question 224:

  An administrator has source code and needs to rebuild a kernel module. Which of the following command sequences is most commonly used to rebuild this type of module?

  A. ./configure make make install
  B. wget gcc cp
  C. tar xvzf build cp
  D. build install configure
  A. ./configure make make install

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  Explanation

  The best command sequence to rebuild a kernel module from source code is A. ./configure make make install. This is the standard way to compile and install a Linux kernel module, as explained in the web search result 5. The other commands are either not relevant, not valid, or not sufficient for this task. For example:

  B. wget gcc cp will try to download, compile, and copy a file, but it does not specify the source code, the module name, or the destination directory.

  C. tar xvzf build cp will try to extract, build, and copy a compressed file, but it does not specify the file name, the module name, or the destination directory.

  D. build install configure will try to run three commands that are not defined or recognized by the Linux shell.

• Question 225:

  A server administrator has scheduled a cron job to run YUM updates on all servers without manual intervention, but kernel packages must be excluded from the updates at all times. Which of the following configuration files needs to be modified to make these changes persistent?

  A. /etc/yum.conf
  B. /etc/dnf/dnf.conf
  C. /etc/yum/pluginconf.d/packages.conf
  D. /etc/yum.repo.d/kernel.repo
  A. /etc/yum.conf

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  Explanation

  The /etc/yum.conf file contains configuration settings for the YUM package manager. To exclude kernel updates, the administrator should add exclude=kernel* to the [main] section of this file. This ensures that all future YUM updates skip kernel packages, making the exclusion persistent.

• Question 226:

  An organization's business office needs to collaborate on quarterly reports and asks the systems administrator to create a finance group. The administrator creates the following directory:

  drwxrwxr-x Business Business 4096 Oct 15 16:40 Q1

  Which of the following commands will allow all members of the finance group to have group ownership of all files created in the Q1 directory while ensuring that members of the business group preserve access? (Select two).

  A. chgrp Finance Q1/
  B. chmod g+s Q1/
  C. chmod u+s Q1/
  D. chmod a+x Q1/
  E. chown Finance Q1/
  F. chmod g+x Q1/
  A. chgrp Finance Q1/
  B. chmod g+s Q1/

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  Explanation

• Question 227:

  A Linux administrator needs to check extended permissions applied to the directory test. Which of the following commands should the administrator use to help with this task?

  A. getsebool test/
  B. getenforce test/
  C. getfacl test/
  D. ls -al test/
  C. getfacl test/

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  Explanation

  getfacl is the command used to view the Access Control List (ACL) of a file or directory, which shows extended permissions beyond the basic owner, group, and others. This is essential for checking permissions that are set using ACLs on the directory test.

• Question 228:

  A systems administrator created a web server for the company and is required to add a tag for the API so end users can connect. Which of the following would the administrator do to complete this requirement?

  A. hostnamectl status --no-ask-password
  B. hostnamectl set-hostname "$(perl -le "print" "A" x 86)"
  C. hostnamectl set-hostname Comptia-WebNode -H [email protected]
  D. hostnamectl set-hostname Comptia-WebNode --transient
  C. hostnamectl set-hostname Comptia-WebNode -H [email protected]

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  Explanation

  The command hostnamectl set-hostname Comptia-WebNode -H [email protected] sets the hostname of the web server to Comptia-WebNode and connects to the server using the SSH protocol and the root user. This is the correct way to complete the requirement. The other options are incorrect because they either display the current hostname status (hostnamectl status), set an invalid hostname (hostnamectl set- hostname "$(perl -le "print" "A" x 86)"), or set a transient hostname that is not persistent (hostnamectl set-hostname Comptia-WebNode --transient).

  References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 9: Managing System Components, page 291.

• Question 229:

  Which of the following best describes the function of Linux inodes?

  A. To manage a list of filesystem ACLs
  B. To store data using copy-on-write
  C. To store encrypted file data
  D. To track file metadata
  D. To track file metadata

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  Explanation

• Question 230:

  Rugged appliances are small appliances with ruggedized hardware and like Quantum Spark appliance they use which operating system?

  A. Centos Linux
  B. Gaia embedded
  C. Gaia
  D. Red Hat Enterprise Linux version 5
  B. Gaia embedded

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  Explanation

  Rugged appliances are small appliances with ruggedized hardware that use Gaia embedded as their operating system. Gaia embedded is a version of Gaia that is optimized for embedded devices such as Rugged appliances and Quantum Spark appliances. Gaia embedded supports features such as VPN, firewall, identity awareness, application control, URL filtering, and anti-bot. Gaia embedded does not use Centos Linux, Gaia, or Red Hat Enterprise Linux version 5 as their operating system.

  References: Check Point Rugged Appliance Datasheet, page 1.