CompTIA XK0-004 Online Practice Questions and Exam Preparation

CompTIA XK0-004 Online Questions & Answers

• Question 161:

  A Linux administrator is tasked with implementing a solution that will centralize information and allow it to be searchable and available for reporting purposes. Which of the following server roles should the administrator implement?

  A. SSH
  B. DNS
  C. Logging
  D. Proxy
  E. NTP
  C. Logging

• Question 162:

  A developer has contacted a systems administrator because an application is not receiving a response from the client. The application must purge the message queue before terminating. Which of the following should the systems administrator perform in order to BEST address the issue?

  A. Send the SIGHUP signal with the kill command.
  B. Send the signal with the command.
  C. Send the SIGSTOP signal with the kill command.
  D. Send the SIGTERN signal with the kill command.
  C. Send the SIGSTOP signal with the kill command.

• Question 163:

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

  A. Kickstart
  B. YAML
  C. Cloud-init
  D. Container image
  A. Kickstart

• Question 164:

  A user created a report.sh script in the home directory.

  When executing /home/user/report.sh the user receives the following error message:

  

  The user executes the following diagnostic commands:

  

  Which of the following is causing the error message?

  A. SELinux is blocking the script.
  B. The server disk is full.
  C. The server configuration does not allow running binaries in user home directories.
  D. The user has exceeded the allowed disk usage in the home directory.
  A. SELinux is blocking the script.

• Question 165:

  A systems administrator is investigating degraded server performance. The administrator executes diagnostic commands that result in the following output:

  

  Which of the following is the MOST likely cause of the degraded server performance?

  A. The processes running in the background are causing high load averages
  B. The server has not been rebooted for 1,055 days causing old processes to utilize the CPU
  C. Too many write operations are happening on the server, causing the IO to wait for requests to be served
  D. The server has little free memory available and is not using any swap memory, causing slow operations
  A. The processes running in the background are causing high load averages

• Question 166:

  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 time according to these requirements? (Choose two.)

  A. localectl
  B. LC_ALL
  C. date
  D. time
  E. hwclock
  F. crontab
  C. date
  E. hwclock

• Question 167:

  A technical support engineer receives a ticket from a user who is trying to create a 1KB file in the /tmp directory and is getting the following error: No space left on device. The support engineer checks the /tmp directory, and it has 20GB of free space.

  Which of the following BEST describes a possible cause for this error?

  A. The /tmp directory is not mounted.
  B. The filesystem is formatted with a 4MB block size.
  C. the filesystem ran out of inodes.
  D. The /tmp directory has been set with an immutable attribute.
  C. the filesystem ran out of inodes.

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  Reference: https://www.maketecheasier.com/fix-linux-no-space-left-on-device-error/

• Question 168:

  Which of the following server roles utilize a heartbeat/polling process? (Choose two.)

  A. Proxy
  B. Certificate authority
  C. Logging
  D. File server
  E. Cluster
  F. Load balancer
  E. Cluster
  F. Load balancer

• Question 169:

  An administrator is configuring a new Linux server and wants to boot the system to a file that was previously downloaded to locally install removable media. Which of the following boot options should the administrator choose?

  A. PXE
  B. ISO
  C. NFS
  D. HTTP
  B. ISO

• Question 170:

  A Linux administrator wants to fetch a Git repository from a remote Git server. Which of the following is the BEST command to perform this task?

  A. git checkout
  B. git clone
  C. git merge
  D. git config
  B. git clone

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  Reference: https://git-scm.com/book/en/v2/Git-Basics-Working-with-Remotes