XK0-004 Practice Questions

An administrator needs to see a list of the system user's encrypted passwords. Which of the following Linux files does the administrator need to read?

A Linux administrator is setting up a testing environment and needs to connect to a separate testing server using the production server name. The administrator needs to override th...

A Linux administrator opens a ticket to have an external hard drive mounted. As a security policy, external storage kernel modules are disabled. Which of the following is the BEST...

Which of the following are Linux desktop managers? (Choose two.)

A systems administrator is configuring options on a newly installed Linux VM that will be deployed to the Pacific time zone. Which of the following sets of commands should the admi...

A user has connected a Bluetooth mouse to a computer, but it is not working properly. Which of the following commands should the systems administrator use to fix the issue?

An administrator notices that a long-running script, /home/user/script.sh, is taking up a large number of system resources. The administrator does not know the script's function. W...

An administrator needs to deploy 100 identical CentOS workstations via PXE boot. Which of the following should the administrator use to minimize the amount of interaction with the...

A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the "dba" group and preserve existing group memberships?

A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of is as follows: chkconfig Which of th...

An engineer is working on a production application deployment that requires changing a web application property file called server.property that is managed by the Git version contr...

A Linux administrator retrieved a repository of files from a Git server using git clone. The administrator wants to see if a configuration file was added to the repository. Which o...

A systems administrator is unable to reach other devices on the network and the Internet. The server is configured with the IP address 192.169.1.50/24 on eth0. The server's router...

A junior Linux administrator needs to access production servers using a secure SSH protocol. Which of the following files should contain the public key to gain remote access to the...

An administrator needs to see the type of CPU that a server is running. Which of the following files contains this information?

A junior systems administrator is creating a cron job. The cron job requirements are as follows: - Run the hello.sh script every hour (24 times in one day). - Run it on Monday only...

A Linux systems administrator is setting up SSH access with PKI for several using their newly created RSA keys. Which of the following MOST securely achieves this task?

The development team has automated their software build process so each time a change is submitted to the source code repository, a new software build is compiled. They are request...

A Linux administrator needs to schedule a cron job to run at 1:15 p.m. every Friday to report the amount of free disk space on the system and to send the output to a file named "fr...

A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet. To accomplish this task, the technician executes the following com...

A junior Linux administrator needs to ensure a service will start on system boot. Which of the following commands should be used to accomplish this task?

A Linux administrator has installed a web application firewall in front of a web server running on HTTP port 8080 and successfully started the HTTP server. However, after opening t...

A member of the production group issues the following command: echo "Monday through Friday" > /production_docs/days The command fails to execute, so the user obtains the following...

A junior systems administrator created a new filesystem /dev/sda1 with mountpoint /data and added it to the /etc/fstab for auto-mounting. When the systems administrator tries to mo...

An analyst is trying to determine which public IP addresses are managed by Company A, but the script is not working correctly. Which of the following explains what is wrong with th...

All users are reporting that they cannot connect to the SFTP server. The administrator runs a scan: Which of the following would allow the administrator to fix the problem?

A Linux systems administrator installed a new web server, which failed while attempting to start. The administrator suspects that SELinux is causing an issue and wants to temporari...

A configuration management tool running every minute is enforcing the service HTTPd to be started. To perform maintenance, which of the following series of commands can be used to...

An administrator has written the following Bash script: All necessary files exist in the correct locations. However, when the administrator executes /home/user/test.sh the followin...

An administrator is troubleshooting an application that has failed to start after the server was rebooted. Noticing the data volume is not mounted, the administrator attempts to mo...

A four-drive Linux NAS has been improperly configured. Each drive has a capacity of 6TB, for a total storage capacity of 24TB. To reconfigure this unit to be not pluggable for driv...

A systems administrator suspects a process with a PID of 2864 is consuming resources at an alarming rate. The administrator uses the command renice -n -5 -p2864, but it does not so...

A systems administrator wants to download a package from a remote server. Which of the following are the BEST commands to use for this task? (Choose two.)

An administrator is logged into a server remotely and wants to determine if the system is a VM. Which of the following commands would assist with this?

Ann, a Linux administrator, wants to edit a configuration management file. When she opens the file to edit, her text editor reports that the file has been opened in read-only mode....

Joe, a member of the accounting group on a Linux system, is unable to write a file called "taxes" in the accounting shared directory. The ownership and permissions on the directory...

An administrator needs to generate a list of services that are listening on TCP and/or UDP ports. Which of the following tools should the administrator use?

Ann, a user, has created a new directory and noticed that permissions on the new directory are as follows: drwx------. 1 ann ann 0 Jun 11 08:20 work Which of the following should t...

A Linux engineer is troubleshooting a newly added SCSI device for a Linux server that needed more disk space without rebooting. The engineer discovers that the new device is not vi...

A systems administrator is troubleshooting an intermittent network connection at the IP address 192.168.1.23. The administrator wishes to monitor the connection at five-minute inte...

A systems administrator wants to mount an ISO to access its content. Using /mnt as a mount point, which of the following is the correct syntax?

An administrator is uncomfortable allowing users to log in as root. Which of the following ensures that root logins are disallowed?

A systems administrator installs a simple package, but the Linux system returns the following error: rpmdb . To verify if there is a problem in the RPM database, the systems admini...

Joe, a user, reports that he is no longer able to write files to his home directory. Upon inspection, the Linux administrator discovers that attempting to create a new file gives t...

A Linux administrator is adding a static IP address to a network interface on a Linux system. The administrator modifies the ifcfg- eth0 configuration file with the following setti...

A company wants to provide internal identity verification services for networked devices. Which of the following servers should be installed?

An administrator notices a directory on a web server named /var/www/html/old_reports that should no longer be accessible on the web. Which of the following commands will accomplish...

A Linux administrator wants to configure log messages of critical or higher severity levels from the cron utility to be logged to the console. Which of the following will accomplis...

A file server is sharing a directory called /share between team members inside a company. The fileshare needs to be moved from serverA to /newshare located on serverB with all perm...

An administrator needs to look at a log for an application on a systemd-based system. There is no log for this application in /var/log. Which of the following is another way to vie...