XK0-004 Practice Questions

In which of the following directories is the vmlinuz file located?

A systems administrator is implementing disk quotas on /home. During the process, the administrator receives the following error: Cannot find filesystem to check or filesystem not...

A Linux user wants to give read-only permissions to a directory and its contents. Which of the following commands will allow the user to accomplish this task?

A Linux administrator needs to remove a USB drive from a system. The unmount command fails, stating the device is busy. Which of the following commands will show the reason for thi...

A Linux systems administrator is troubleshooting an issue with the /home directory running out of space. The administrator needs to determine which /home directories are using the...

An administrator needs a bootable USB for installing a new Linux machine. The administrator downloaded the image file and named it as Linux_OS.iso in the /tmp directory. Which of t...

A junior Linux administrator needs to create 16 empty files quickly that will contain sales information for each quarter for the past four years. Which of the following commands wi...

An administrator needs to change the DNS domain search order of a single Linux host to localize it better. Which of the following files should the administrator edit?

A user issues the following command: ls -l /var/log | egrep -e '^d[rwx]{3}.*[rw-]{3}.*' The list of files in the system is shown below: Which of the following results matches the c...

Which of the following BEST describes build automation?

A Linux administrator needs to configure a new firewall without an existing ACL to allow incoming web traffic. The firewall must log the allowed network traffic. Which of the follo...

An organization wants to consolidate its entire user information in centralized storage using an X.500- based protocol. Which of the following protocols should be used for this imp...

An administrator needs to kill the oldest Bash shell running in the system. Which of the following commands should be issued to accomplish this task?

Due to security policies, a restriction was implemented that forbids direct access to the database server. The junior administrator needs to connect using SSH tunneling. Which of t...

Which of the following boot methods can a Linux administrator use to boot a Linux server remotely via a network interface card instead of a local disk?

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,...

A system ran out of storage space on a particular mount and will not allow anything to be written to disk. The df command shows there are 6GB free on the mount, and there is no ino...

A Linux administrator suspects unauthorized users are attempting to log in to the Linux server remotely. Which of the following should the administrator check FIRST?

A junior systems administrator is diagnosing an issue with latency. The administrator issues the Given this scenario and the output, which of the following should be reported to th...

A user receives an access_denied error when trying to modify a file, even though the file permissions are set to 777. Which of the following commands should be used to view additio...

A Linux administrator receives a call from the network operations team that one of the database applications is down on a Linux server. The Linux server is configured with RAID 1 f...

A systems administrator needs to connect to a remote Linux machine to run system updates from within a graphical interface. Which of the following should the administrator use?

When requesting SSH access to a remote system, a user accidentally emailed the id_rsa key to the administrator. Which of the following should the user do NEXT?

An administrator receives an alarm because the disk of one of the sewers is running out of space. Which of the following commands can be used to see the space that each partition i...

A Linux team is using Git to version a set of custom scripts. A team member has made an update to a script and published the changes to the repository. Which of the following is th...

A junior systems administrator needs to make a packet capture file that will only capture HTTP protocol data to a file called test.pcap. Which of the following commands would allow...

A Linux administrator needs to add some files in a directory to the Git repository but must exclude some local .tmp files that are occasionally created by the scripts. Which of the...

A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualizati...

A systems administrator needs to conduct maintenance on a server. Which of the following commands will place the administrator in the appropriate runlevel?

Which of the following are classified as Linux GUI servers? (Choose two.)

A Linux administrator tried to copy files to a remote server but received an error message indicating a lack of free space on the disk. The administrator issued a df command and ve...

A user wants to alias dir so it always returns the contents of the ls -la command. However, the user has to reset the alias with every login. Which of the following is the BEST act...

A systems administrator needs to run the yum update command two hours after employees log off and leave for the day on Friday. Which of the following is the BEST command to complet...

The Apache web server was recently installed on a Debian/Ubuntu server. The web server fails and a review of log messages on another partition reveals the installation was not comp...

Given the output below: [root@appserver ~]# rm config.txt rm: remove regular file 'config.txt'? yes rm: cannot remove 'config.txt': Operation not permitted Which of the following m...

Users in the sales department are unable to create new files in the shared directory /Sales. A junior Linux administrator determines the permissions on the /Sales directory are set...

A user is reporting unusual slowness when trying to transfer a large file to an NFS server from a workstation. The administrator runs tracepath and gets the following output: Which...

A Linux administrator needs to back up files from a user's home directory to a remote server. The administrator copied the files last week but must ensure any files created or modi...

A systems administrator documents the instructions on the internal wiki regarding how to turn the company's code into Debian packages. The instructions include the commands used to...

Which of the following is used in unattended server installation via PXE?

A new video card was added to a customer workstation. To get the new video card to work correctly, a systems administrator needs to remove support for the nouveau video driver on t...

A technician suspects a company's border firewall is down, thus blocking Internet access. The technician executes the following commands: #ping -c 1 firewall.company.com 64 bytes f...

A Linux user needs to connect to a remote email server named mail.foo.com through the SMTP port. Which of the following commands will accomplish this task?

A company requires all servers to be configured with the BIOS on Coordinated Universal Time and the OS on Central Standard Time. Which of the following can be used to change the ti...

A Linux administrator recently changed the IP addresses of all the web servers from 10.10.50.x to 10.10.100.x. The administrator needs to update the serverlist.txt file to reflect...

Which of the following servers provides encrypted tunnel SOCKS services?

The following represents a partial listing of a user's .bashrc file: HISTSIZE=800 HISTFILESIZE=1000 umask 2002 HISTCONTROL=ignoreboth When the user opens a terminal, an error messa...

Which of the following can be used to check the status of wireless devices that are connected to the system?

Joe, a user, creates a short shell script, shortscript.sh, and saves it in his home directory with default permissions and paths. He then attempts to run the script by typing ./sho...

A Linux user needs to create a file named newfile in the home directory that mirrors the contents of the /etc/resolv.conf file. Which of the following commands would accomplish thi...