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 XK0-004 Dumps with Practice Exam Questions Answers

Questions: 320 questions

Last Update: Jan 15, 2022

CompTIA Certification Exam XK0-004 has been designed to measure your skills in handling the technical tasks mentioned in the certification syllabus

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XK0-004 Questions and Answers

Question # 1

A systems administrator must clean up all application files in the directory /var/log/app. However, the company’s security policy requires the files to be kept on the backup server for one year. The Linux server has only the tar and bzip2 packages installed.

Which of the following commands will package and compress the files?


tar –zcvf applicationfiles.tar.bz2 /var/log/app/*


tar –jcvf applicationfiles.tar.bz2 /var/log/app/*


tar –cvf applicationfiles.tar.bz2 /var/log/app/*


tar –xvf applicationfiles.tar.bz2 /var/log/app/*

Question # 2

A Linux administrator needs to disable the Sendmail service on a Linux server and prevent it from being started

manually and during boot.

Which of the following is the BEST command to do this?


systemctl reset-failed sendmail


systemctl mask sendmail


systemctl stop sendmail


systemctl disable sendmail

Question # 3

A systems administrator needs to allow the Linux server to receive HTTP connections from Internet hosts. By default, the port for HTTP connections is blocked. Which of the following rules should be added in the firewall to allow this type of connection?


firewall-cmd --zone=public --add-port=443/tcp --permanent


firewall-cmd --zone=internal --add-port=80/tcp --permanent


firewall-cmd --zone=public --add-port=80/tcp --permanent


firewall-cmd --zone=internal --add-port=443/tcp --permanent

Question # 4

A systems administration team has decided to their systems as immutable instances. They keep the desired state of each of their systems in version control and apply automation whenever they provision a new instance. If there is an issue with one of their servers, instead of troubleshooting the issue they terminate the instance and rebuild it using automation.

Which of the following is this an example of?






Infrastructure as code


Agentless deployment

Question # 5

An administrator receives a USB drive and wants to make an exact copy of the disk before starting to work on it. One of the partitions on the USB drive was mounted as /dev/sdc1.

Which of the following commands should the administrator use?


dd if=/dev/sdc of=~/usb_copy.img bs=512


dd if=/dev/sdc1 of=~/usb_copy.img count=1024


dd if=/dev/sdc1 of=~/usb_copy.img bs=1024


dd of=/dev/sdc if=~/usb_copy.img bs=1M

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