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CompTIA XK0-004 Exam With Confidence Using Practice Dumps

Exam Code:
XK0-004
Exam Name:
CompTIA Linux+ Certification Exam
Certification:
CompTIA Other Certification
Vendor:
CompTIA
Questions:
483
Last Updated:
Apr 19, 2025
Exam Status:
Stable
CompTIA XK0-004

XK0-004: CompTIA Other Certification Exam 2025 Study Guide Pdf and Test Engine

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Related CompTIA Exams

CompTIA Linux+ Certification Exam Questions and Answers

Get Free XK0-004 Questions and Answers
Question 1

An administrator notices the HISTSIZE variable is 50, using the commands below:

HISTSIZE=50

export HISTSIZE

The administrator rechecks the HISTSIZE value using echo HISTSIZE but gets no value. Which of the

following commands should the administrator use to retrieve its value?

Options:

A.

printenv | grep $HISTSIZE

B.

echo HISTSIZE

C.

printf HISTSIZE

D.

grep $HISTSIZE

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Question 2

A user requested a USB serial device to be added to a desktop computer. The device has built-in kernel driver

support. The administrator tested the device installation and access, but the user cannot access the serial port.

Each time the user attempts to access the device, an error log is created that shows the user does not have

permission to use the serial port. Which of the following will add a user to the group that has serial port

capabilities?

Options:

A.

usermod –a –G serialport $USER

B.

usermod –a –G modem $USER

C.

usermod –a –G dialout $USER

D.

usermod –a –G root $USER

Question 3

Which of the following command should an administrator use to prevent users from starting the httpd service on a system-based Linux system?

Options:

A.

Systemct1 mask httpd

B.

Systemct1 disables httpd

C.

Chkconfig httpd off

D.

Systemctl stop httpd

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