XK0-004 | A Review Of Realistic XK0-004 Pdf

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Ann, a junior systems administrator, is required to add a line to the /etc/yum.conf file. However, she receives the following error message when she tries to add the line:
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Ann performs some diagnostics to attempt to find the root cause:
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Which of the following commands should Ann execute to write content to /etc/yum?

  • A. chmod 755 /etc/yum.conf
  • B. setfacl –m m:rw /etc/yum.conf
  • C. chattr –I /etc/yum.conf
  • D. setenforce 0

Answer: A

A networked has been crashing intermittently. A Linux administrator would like to write a shell script that will attempt to ping the server and email an alert if the server fails to respond. The script will later be scheduled via cron job.
Which of the following scripts would BEST accomplish this task?
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  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Answer: D

A systems administrator needs to append output of ls –lha /opt command to the contents of a test.txt file. Which of the following commands will accomplish this?

  • A. ls –lha /opt > test.txt
  • B. ls –lha /opt < test.txt
  • C. ls –lha /opt >> test.txt
  • D. ls –lha /opt << test.txt

Answer: C

A systems administrator is unable to reach other devices on the network and the Internet. The server is configured with the IP address on eth0. The server’s router is The administrator reviews the output of route –n:
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Which of the following commands should the administrator run to correct the issue?

  • A. route del default gw eth0; route add default gw eth0
  • B. route add –net netmask gw eth0
  • C. route add default eth0
  • D. route host gw eth0

Answer: B

After starting a long-running script, a systems administrator needs to verify the frequency of what is filling up the /var partition and kill it because it is consuming too much space.
Which of the following is the correct sequence given only a terminal is available?

  • A. 1. CTRL-C2. bg3. watch df /var4. CTRL-C5. fg6. CTRL-Z
  • B. 1. CTRL-C2. fg3. watch df /var4. CTRL-Z5. bg6. CTRL-Z
  • C. 1. CTRL-Z2. bg3. watch df /var4. CTRL-C5. fg6. CTRL-C
  • D. 1. CTRL-Z2. bg3. watch df /var4. CTRL-Z5. fg6. CTRL-C

Answer: D

A junior Linux administrator is installing a new application with CPU architecture requirements that have the following specifications:
x64 bit 3.0GHz speed
Minimum quad core
The administrator wants to leverage existing equipment but is unsure whether the requirements of these systems are adequate. The administrator issues the following command cat/proc/cpuinfo. The output of the command is as follows:
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Which of the following is the recommended course of action the administrator should take based on this output?

  • A. Install the application, as the system meets the application requirements
  • B. Procure new equipment that matches the recommended specifications
  • C. Recompile the Linux kernel to support the installation.
  • D. Reconfigure lib modules to support the new application.

Answer: A

A new HTTPS web service is being deployed on a server. Which of the following commands should the Linux administrator use to ensure traffic is able to flow through the system firewall to the new service?

  • A. iptables –I OUTPUT –p tcp --sport 443 –j ACCEPT
  • B. iptables –A INPUT –p tcp --dport 443 –j ACCEPT
  • C. iptables –I INPUT --dport 443 –j ACCEPT
  • D. iptables –A OUTPUT –p tcp --dport 443 –j ACCEPT

Answer: C

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 administrator execute to accurately configure the correct time settings?

  • A. cd /etcln –s /usr/share/zoneinfo/US/Pacific localtime
  • B. cd /usr/localln –s /usr/share/zoneinfo/US/Pacific zoneinfo
  • C. cd /etc/localln –s /usr/share/zoneinfo/US/Pacific localtime
  • D. cd /usr/share/localln –s /usr/share/zoneinfo/US/Pacific localectl

Answer: A

A Linux server has multiple IPs. A Linux administrator needs to verify if the HTTP server port is bound to the correct IP.
Which of the following commands would BEST accomplish this task?

  • A. route
  • B. host
  • C. nslookup
  • D. netstat
  • E. ip

Answer: D

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

  • A. KDE
  • B. GNOME
  • C. GUI
  • D. VNC
  • E. X11
  • F. SPICE

Answer: AB

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. chkconfig <service> on
  • B. systemctl <service> bootup
  • C. service <service> enable
  • D. crontab install <service>

Answer: A

Ann, a junior Linux administrator, needs to copy software from her local machine to assist in developing a software application on a remote machine with the IP address The file needs to be placed on the /tmp directory. After downloading the RPM to the local machine, which of the following commands would be BEST to use to copy the software?

  • A. scp ~/software.rpm USER@
  • B. scp ~/software.rpm USER@ /tmp
  • C. wget USER@ -f ~/software.rpm
  • D. scp USER@ ~/software.rpm :/tmp

Answer: C

A systems administrator has finished building a new feature for the monitoring software in a separate Git branch.
Which of the following is the BEST method for adding the new feature to the software’s master branch?

  • A. Merge the changes from the feature branch to the master branch.
  • B. Save the changes to the master branch automatically with each Git commit.
  • C. Clone the feature branch into the master branch.
  • D. Pull the changes from the feature branch into the master branch.

Answer: A

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 control system. A cloned copy of the remote repository in which the server.property file exists is on the local desktop computer. The engineer makes appropriate changes to the files, saves it as server.property, and executes git commit –m “changed the property file” server.property. Which of the following commands did the engineer fail to perform?

  • A. git init server.property
  • B. git merge server.property
  • C. git add server.property
  • D. git push server.property

Answer: D

Two specific users need access to a directory owned by root where backups are located. Which of the following commands would BEST ensure the specified users can access the backup files?

  • A. umask
  • B. chcon
  • C. chmod
  • D. setfacl

Answer: D

An administrator needs to mount the shared NFS file system testhost:/testvolume to mount point /mnt/testvol and make the mount persistent after reboot.
Which of the following BEST demonstrates the commands necessary to accomplish this task?

  • A. XK0-004 dumps exhibit
  • B. XK0-004 dumps exhibit
  • C. XK0-004 dumps exhibit
  • D. XK0-004 dumps exhibit

Answer: C

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

  • A. /proc/cpuinfo
  • B. /etc/devices/info.conf
  • C. /dev/proc/cpu
  • D. /sys/dev/cpuinfo

Answer: A


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