CompTIA XK0-004 Online Practice Questions and Exam Preparation

CompTIA XK0-004 Online Questions & Answers

• Question 421:

  A technician wants to configure a Unux server as a gateway firewall. The technician has implemented the proper ACLs and port address translation policies, but network traffic is not passing from the LAN to the WAN. Which of the followng should the technician configure to fa this issue?

  A. DenyHouse
  B. Squid-service
  C. Ip_forward
  D. /etc/service
  A. DenyHouse

• Question 422:

  A systems administrator wants to deploy several applications to the same server quickly. Each application should be abstracted from the host with its own dependencies and libraries and utilize a minimal footprint. Which of the following would be BEST in this scenario?

  A. Virtual machines
  B. Type 2 hypervisor
  C. Chroot jails
  D. Containers
  D. Containers

• Question 423:

  An administrator has modified the configuration file for a service. The service is still running but is not using the new configured values. Which of the following will BEST remediate this issue?

  A. kill -HUP
  B. init 0
  C. service start
  D. renice -10
  A. kill -HUP

• Question 424:

  An end user is trying to execute a file within a different directory The end user executes the following command:

  

  Which of the following commands should the Linux administrator use to run the shell scnpt within that folder?

  A. chmod 0644
  B. chmod g-x myabc.sh
  C. chmod 0755
  D. chmod u-x myabc,sh
  C. chmod 0755

• Question 425:

  A technician reviews me following output:

  

  Which of the following commands should the technician execute to ensure the system has the appropriate paging? (Select TWO).

  A. dd if-/dev/sda5 of-/otp bs-512
  B. swapon./dev/sda5
  C. mksvap /dev/sda5
  D. mkfs.ext3 /dev/sda5
  E. iostat/dev/sda5
  F. free -m /dev/sda
  B. swapon./dev/sda5
  C. mksvap /dev/sda5

• Question 426:

  A system administrator recently installed and configure a web proxy server with the IP address 192.68 address. What is the should be implemented on then proxy server to ensure traffic is processes?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  A. Option A

• Question 427:

  An administrator is conftgunng two Linux VMs on one physical server. The VMs must be able to obtain a unique IP address from the host's subnet. Which of the following represents how the virtual network adapters should be configured on the

  A. NAT
  B. Local-only
  C. Bridging D. Overlay
  C. Bridging D. Overlay

• Question 428:

  A Linux administrator needs to give user2 full permissions to the /opt/share/test directory. Permission for user1 and group2 must remain the same. The administrator runs the Is-Id /opt/share/test/ command and receives the output below:

  

  Which of the following command is the BEST to perform this task?

  A. Chown user1:user2/opt/share/test
  B. Setfac1-m u:user2;rwx /opt/share/test
  C. Chmod 757 /opt/share/test
  D. Chgrp user2 opt/share/test
  A. Chown user1:user2/opt/share/test

• Question 429:

  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. She then tries to edit the file as root by elevating via sudo and is still unable to save any changes. The error message in her text editor says that the read-only option is set on the file. Ann checks the permissions on the file and sees the following:

  -rw-rw-r-- 1 root wheel 30 Jun 13 15:38 infrastructure.yml

  Which of the following commands is the BEST option to allow her to successfully modify the file?

  A. chmod 600 infrastructure.yml
  B. chown root: infrastructure.yml
  C. chattr -i infrastructure.yml
  D. chmod o+w infrastructure.yml
  D. chmod o+w infrastructure.yml

  ---

  Reference: https://cets.seas.upenn.edu/answers/chmod.html

• Question 430:

  While trying to access a website hosted on the server, the systems administrator receives the following error message:

  

  The administrator then performs some diagnostics:

  

  Which of the following commands should the administrator use to fix the issue?

  A. chown -R www:www /var/www/website
  B. chcon -t httpd_sys_content_t /etc/httpd
  C. chmod -R 777 /var/www/website
  D. restorecon /var/www/html/website/index.html
  A. chown -R www:www /var/www/website