XK0-005 TRAINING SOLUTIONS & ONLINE XK0-005 VERSION

XK0-005 Training Solutions & Online XK0-005 Version

XK0-005 Training Solutions & Online XK0-005 Version

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CompTIA XK0-005 certification exam is a vendor-neutral certification that validates the skills and knowledge required for a Linux system administrator. CompTIA Linux+ Certification Exam certification exam is designed for IT professionals who work with Linux systems and want to validate their skills in managing and configuring Linux systems. CompTIA Linux+ Certification Exam certification exam is ideal for those who want to enhance their skills and knowledge in Linux system administration.

CompTIA XK0-005 Exam is an excellent certification for IT professionals who are looking to validate their skills and knowledge in Linux system administration. It covers a broad range of topics and is updated regularly to reflect the latest industry trends and technologies. With this certification, IT professionals can demonstrate their expertise and improve their career prospects in the field of Linux system administration.

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CompTIA Linux+ Certification Exam (XK0-005) is designed for IT professionals who are interested in gaining a strong foundation in Linux operating systems. CompTIA Linux+ Certification Exam certification exam is vendor-neutral, which means it is not tied to any specific Linux distribution. This allows candidates to demonstrate their knowledge and skills in Linux across different distributions, such as Ubuntu, Debian, Fedora, and others. The XK0-005 Certification Exam is an updated version of the previous CompTIA Linux+ exam (LX0-103 and LX0-104). It covers the core Linux concepts, system administration tasks, and advanced Linux administration skills.

CompTIA Linux+ Certification Exam Sample Questions (Q58-Q63):

NEW QUESTION # 58
A Linux administrator has installed a web server, a database server, and a web application on a server. The web application should be active in order to render the web pages. After the administrator restarts the server, the website displays the following message in the browser: Error establishing a database connection. The Linux administrator reviews the following relevant output from the systemd init files:

The administrator needs to ensure that the database is available before the web application is started. Which of the following should the administrator add to the HTTP server .service file to accomplish this task?

  • A. ONFAILURE=mariadb.service
  • B. TRIGGERS=mariadb.service
  • C. WANTEDBY=mariadb.service
  • D. REQUIRES=mariadb.service

Answer: D

Explanation:
Explanation
The administrator should add REQUIRES=mariadb.service to the HTTP server .service file to ensure that the database is available before the web application is started. This directive specifies that the HTTP server unit requires the MariaDB server unit to be started before it can run. If the MariaDB server unit fails to start or stops for any reason, the HTTP server unit will also fail or stop. This way, the dependency between the web application and the database is enforced by systemd.
The other options are not correct directives for accomplishing this task. TRIGGERS=mariadb.service is not a valid directive in systemd unit files. ONFAILURE=mariadb.service means that the HTTP server unit will start only if the MariaDB server unit fails, which is not what we want. WANTEDBY=mariadb.service means that the HTTP server unit will be started when the MariaDB server unit is enabled, but it does not imply a strong dependency or ordering relationship between them. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Services with systemd; systemd.unit(5) - Linux manual page


NEW QUESTION # 59
A systems administrator is implementing a new service task with systems at startup and needs to execute a script entitled test.sh with the following content:

The administrator tries to run the script after making it executable with chmod +x; however, the script will not run. Which of the following should the administrator do to address this issue? (Choose two.)

  • A. Create a unit file for the new service in /etc/systemd/system/ with the name helpme.service in the location.
  • B. Add #!/bin/bash to the bottom of the script.
  • C. Add #!//bin/bash to the top of the script.
  • D. Create a unit file for the new service in /etc/init.d with the name helpme.service in the location.
  • E. Shut down the computer to enable the new service.
  • F. Restart the computer to enable the new service.

Answer: A,C

Explanation:
The administrator should do the following two things to address the issue:
* Add #!/bin/bash to the top of the script. This is called a shebang line and it tells the system which interpreter to use to execute the script. Without this line, the script will not run properly. The shebang line should be the first line of the script and should start with #! followed by the path to the interpreter.
In this case, the interpreter is bash and the path is /bin/bash. The other option (A) is incorrect because the shebang line should be at the top, not the bottom of the script.
* Create a unit file for the new service in /etc/systemd/system/ with the name helpme.service in the location. This is necessary to register the script as a systemd service and enable it to run at startup. A unit file is a configuration file that defines the properties and behavior of a service, such as the description, dependencies, start and stop commands, and environment variables. The unit file should have the extension .service and should be placed in the /etc/systemd/system/ directory. The other option (E) is incorrect because /etc/init.d is the directory for init scripts, not systemd services.
References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Processes and Scheduling Tasks, pages 429-430.


NEW QUESTION # 60
One leg of an LVM-mirrored volume failed due to the underlying physical volume, and a systems administrator is troubleshooting the issue. The following output has been provided:

Given this scenario, which of the following should the administrator do to recover this volume?

  • A. Reboot the server. The volume will revert to stripe mode.
  • B. Replace the failed drive and reconfigure the mirror.
  • C. Recreate the logical volume.
  • D. Reboot the server. The volume will automatically go back to linear mode.

Answer: B

Explanation:
The administrator should replace the failed drive and reconfigure the mirror to recover the volume. The LVM (Logical Volume Manager) is a tool for managing disk space on Linux systems. The LVM allows the administrator to create logical volumes that span across multiple physical volumes, such as hard disks or partitions. The LVM also supports different types of logical volumes, such as linear, striped, or mirrored. A mirrored logical volume is a type of logical volume that creates a copy of the data on another physical volume, providing redundancy and fault tolerance. The output shows that the logical volume is mirrored and that one leg of the mirror has failed due to the underlying physical volume. This means that one of the physical volumes that contains the data of the logical volume is damaged or missing. This can cause data loss and performance degradation. The administrator should replace the failed drive and reconfigure the mirror to recover the volume. The administrator should identify the failed physical volume by using commands such as pvdisplay, vgdisplay, or lvdisplay. The administrator should then remove the failed physical volume from the volume group by using the vgreduce command. The administrator should then install a new drive and create a new physical volume by using the pvcreate command. The administrator should then add the new physical volume to the volume group by using the vgextend command. The administrator should then reconfigure the mirror by using the lvconvert command. The administrator should replace the failed drive and reconfigure the mirror to recover the volume. This is the correct answer to the question. The other options are incorrect because they either do not recover the volume (reboot the server. The volume will automatically go back to linear mode or reboot the server. The volume will revert to stripe mode) or do not preserve the data of the volume (recreate the logical volume). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Storage, pages 333-334.


NEW QUESTION # 61
When trying to log in remotely to a server, a user receives the following message:

The server administrator is investigating the issue on the server and receives the following outputs:

Which of the following is causing the issue?

  • A. The account was locked out due to three failed logins.
  • B. The user entered the wrong password.
  • C. The user has the wrong shell assigned to the account.
  • D. The wrong permissions are on the user's home directory.

Answer: C

Explanation:
The user has the wrong shell assigned to the account, which is causing the issue. The output 1 shows that the user's shell is set to /bin/false, which is not a valid shell and will prevent the user from logging in. The output
2 shows that the user's home directory has the correct permissions (drwxr-xr-x), and the output 3 shows that the user entered the correct password and was accepted by the SSH daemon, but the session was closed immediately due to the invalid shell. The other options are incorrect because they are not supported by the outputs. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 13: Managing Network Services, page 413.


NEW QUESTION # 62
A systems administrator was tasked with assigning the temporary IP address/netmask
192.168.168.1/255.255.255.255 to the interface eth0 of a Linux server.
When adding the address, the following error appears:
# ip address add 192.168.168.1/33 dev eth0
Error: any valid prefix is expected rather than "192.168.168.1/33".
Based on the command and its output above, which of the following is the cause of the issue?

  • A. There is no route to 192.168.168.1/33.
  • B. The IP address 192.168.168.1 is already in use.
  • C. The interface eth0 does not exist.
  • D. The CIDR value /33 should be /32 instead.

Answer: D

Explanation:
The cause of the issue is that the CIDR value /33 is invalid for an IPv4 address. The CIDR value represents the number of bits in the network prefix of an IP address, and it can range from 0 to 32 for IPv4 addresses. A CIDR value of /33 would imply a network prefix of more than 32 bits, which is impossible for an IPv4 address. To assign a temporary IP address/netmask of
192.168.168.1/255.255.255.255 to eth0, the CIDR value should be /32 instead, which means a network prefix of 32 bits and a host prefix of 0 bits. There is no route to 192.168.168.1/33 is not the cause of the issue, as the ip address add command does not check the routing table. The interface eth0 does not exist is not the cause of the issue, as the ip address add command would display a different error message if the interface does not exist. The IP address 192.168.168.1 is already in use is not the cause of the issue, as the ip address add command would display a different error message if the IP address is already in use.


NEW QUESTION # 63
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