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CompTIA Linux+ certification exam, also known as the XK0-005 exam, is a vendor-neutral certification test designed to validate the skills and knowledge of IT professionals working with Linux operating systems. XK0-005 Exam is ideal for individuals who want to demonstrate their expertise in Linux system administration, installation, configuration, and troubleshooting.

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CompTIA XK0-005, also known as CompTIA Linux+ Certification Exam, is a certification exam designed for IT professionals who are interested in demonstrating their knowledge and skills in Linux-based systems. XK0-005 exam covers a wide range of topics including system architecture, Linux command line, file systems and storage, security, virtualization, and troubleshooting. CompTIA Linux+ Certification Exam certification validates the candidate's ability to perform tasks related to installation, configuration, management, and troubleshooting of Linux-based systems.

CompTIA XK0-005 (CompTIA Linux+ Certification) certification exam is an excellent opportunity for IT professionals to showcase their knowledge and skills in Linux systems administration. CompTIA Linux+ Certification Exam certification exam is vendor-neutral and covers a wide range of topics that are essential for managing Linux systems. By passing this certification exam, candidates can enhance their career prospects in the IT industry and demonstrate their proficiency in Linux systems administration.

CompTIA Linux+ Certification Exam Sample Questions (Q46-Q51):

NEW QUESTION # 46
The journald entries have filled a Linux machine's /var volume. Which of the following is the best command for a systems administrator to use to free up the disk space occupied by these entries?

A. systemctl stop systemd-journaldsystemctl start systemd-journald
B. journalctl -rotatejournalctl --vacuum-time=ls
C. rm -rf /var/log/journalsystemctl restart systemd-journald
D. pkill -HUP systemd-journaldsystemctl restart systemd-journald

Answer: A

Explanation:
systemctl stop systemd-journald systemctl start systemd-journald is the best approach among the given options. Stopping and starting the systemd-journald service can help in managing the disk space used by journal logs without manually deleting log files or using more aggressive cleanup methods. This method ensures that log management is handled gracefully by the system's own services.

NEW QUESTION # 47
A Linux administrator is configuring a log collector agent to monitor logs in /var/log/collector. The agent is reporting that it cannot write to the directory. The agent runs as the logger user account. The administrator runs a few commands and reviews the following output:
makefile
Output 1:
drwxr-xr-x. 1 root root 0 Oct 20:13 collector
Output 2:
file: /var/log/collector
owner: root
group: root
user::rwx
group::r-x
mask::rwx
other::r-x
Output 3:
uid=1010(logger) gid=1010(monitor) groups=1010(monitor)
Which of the following is the best way to resolve the issue?

A. setfacl -Rm u:logger/var/log/collector
B. chmod 644 /var/log/collector
C. usermod -aG root logger
D. chown -R logger/var/log

Answer: A

Explanation:
The issue is that the logger user does not have write permissions to /var/log/collector. Using setfacl (Access Control Lists) allows fine-grained control over file permissions, granting the logger user the necessary read-write access to the directory without changing the owner or group.

NEW QUESTION # 48
An engineer needs to insert a character at the end of the current line in the vi text editor. Which of the following will allow the engineer to complete this task?

A. i
B. bb
C. A
D. r
E. p

Answer: C

Explanation:
The vi text editor is a popular and powerful tool for editing text files on Linux systems. The vi editor has two modes: command mode and insert mode. In command mode, the user can issue commands to manipulate the text, such as moving the cursor, deleting, copying, pasting, searching, replacing, and saving. In insert mode, the user can type text into the file.
To switch from command mode to insert mode, the user can press various keys, such as i, a, o, I, A, or O.
To switch from insert mode to command mode, the user can press the Esc key.
To insert a character at the end of the current line in the vi editor, the user can press the A key in command mode.
This will move the cursor to the end of the line and switch to insert mode.
Then, the user can type the desired character and press Esc to return to command mode.
The statement D is correct.
The statements A, B, C, and E are incorrect because they do not perform the desired task.
The p key in command mode will paste the previously copied or deleted text after the cursor.
The r key in command mode will replace the character under the cursor with another character.
The bb key in command mode will move the cursor back two words.
The i key in command mode will switch to insert mode before the cursor.
Reference: [How to Use vi Text Editor in Linux]

NEW QUESTION # 49
A new application container was built with an incorrect version number. Which of the following commands should be used to rename the image to match the correct version 2.1.2?

A. docker update comptia/app:2.1.1 comptia/app:2.1.2
B. docker tag comptia/app:2.1.1 comptia/app:2.1.2
C. docker rmi comptia/app:2.1.1 comptia/app:2.1.2
D. docker push comptia/app:2.1.1 comptia/app:2.1.2

Answer: B

Explanation:
The best command to use to rename the image to match the correct version 2.1.2 is A. docker tag comptia/app:2.1.1 comptia/app:2.1.2. This command will create a new tag for the existing image with the new version number, without changing the image content or ID.

NEW QUESTION # 50
A systems administrator receives reports that several virtual machines in a host are responding slower than expected. Upon further investigation, the administrator obtains the following output from one of the affected systems:

Which of the following best explains the reported issue?

A. The physical host is running out of CPU resources, leading to insufficient CPU time being allocated to virtual machines.
B. The virtual machine is running out of CPU resources, leading to users experiencing longer response times.
C. The physical host has enough CPU cores, leading to users running more processes to compensate for the slower response times.
D. The virtual machine has enough CPU cycles, leading to the system use percentage being higher than expected.

Answer: B

Explanation:
Explanation
Based on the output from one of the affected systems, the best explanation for the reported issue is that the virtual machine is running out of CPU resources, leading to users experiencing longer response times (D). The output shows that the system use percentage is very high (57.85%), indicating that the virtual machine is using most of its CPU cycles for system processes. This leaves little CPU time for user processes, which results in slower performance. The other explanations are not supported by the output or are contradictory. References:
[CompTIA Linux+ Study Guide], Chapter 8: Optimizing Linux Performance, Section: Monitoring CPU Usage
[How to Interpret CPU Usage Statistics]

NEW QUESTION # 51
......

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CompTIA Linux+ Certification Exam Sample Questions (Q46-Q51):

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