CompTIA XK0-004 Online Practice Questions and Exam Preparation

CompTIA XK0-004 Online Questions & Answers

• Question 451:

  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
  D. netstat

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  Reference: https://www.tecmint.com/find-listening-ports-linux/

• Question 452:

  A user cannot write files to the /home/user directory. The junior Linux administrator runs the following commands:

  

  Which of the following BEST represents why the user cannot write files?

  A. The filesystem is out of inodes.
  B. The filesystem is out of file space.
  C. The filesystem is not configured for the user to write to it.
  D. The filesystem does not have a group write permission.
  D. The filesystem does not have a group write permission.

• Question 453:

  A new user has been added to a Linux machine. Which of the following directories would contain the user's default files?

  A. /etc/login.defs
  B. /etc/passwd
  C. /etc/skel
  D. /etc/inittab
  C. /etc/skel

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  Reference: https://linuxize.com/post/how-to-create-users-in-linux-using-the-useradd-command/

• Question 454:

  A server technician deployed ten ctoned Linux devices in an organization. When testing network functionality of the devices, the technician notices the cloned devices have identical hostnames. Which of the following commands si hostnames of the devices permanently'?

  A. Edit the 'etc/dhcp/dhclient .conf file.
  B. Edit the /etc/sysconfig/network file.
  C. Issue the host- command
  D. Issue the nslookup command
  B. Edit the /etc/sysconfig/network file.

• Question 455:

  A new packages repository named repo10 has been installed on mirror site. A Linux administrator wants to use this new repository for local package installations. In which of the following locations should the administrator store the configuration information for the repo10 repository?

  A. /etc/yum.reps.d/repo10.Repo
  B. /etc/yum_repo.d/repo10
  C. /etc/yum.reps.d/repo10
  D. /etc/yum.conf
  A. /etc/yum.reps.d/repo10.Repo

• Question 456:

  Which of the following is the purpose of the vmlinux file on a Linux system?

  A. To prevent a Linux kernel panic
  B. To start a Linux virtual machine
  C. To provide the executable kernel for the system
  D. To enable resource access to the network
  C. To provide the executable kernel for the system

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  Reference: https://en.wikipedia.org/wiki/Vmlinux

• Question 457:

  A technician needs to install the package, tar,gz, which contains the source code of custom software The technician downloaded the file in /crap.

  Which of the following commands should the technician use to install the executable? (Select Three.)

  A. tar
  B. gunzip
  C. Idd
  D. configure
  E. apt
  F. make
  G. yum
  H. bzip2
  I. pip
  E. apt
  G. yum
  I. pip

• Question 458:

  A Linux administrator issues the following command with root or sudo privileges:

  Rmp -1 installpackage.rpm --nodeps

  Which of the following should the administrator expect to see in the output?

  A. The installpackage.rmp package will not fail due to checks for dependencies.
  B. The installpackage.rmp package will not fail due to missing dependencies
  C. The installpackage.rmp package will not be installed, and there will be dependencies
  D. The installpackage.rmp package will not be installed, and there not be check for dependencies
  A. The installpackage.rmp package will not fail due to checks for dependencies.

• Question 459:

  A systems administrator needs to install a new piece of hardware that requires a new driver. The driver should be manually installed. Which of the following describes the order of commands required to obtain module information, install the module, and check the log for any errors during module installation?

  A. lsmod, modprobe, modinfo
  B. modinfo, insmod, modprobe
  C. modinfo, insmod, dmesg
  D. lsmod, insmod, dmesg
  A. lsmod, modprobe, modinfo

• Question 460:

  A systems administrator discovers httpd is running and preventing another application service from listening on the default web port. The administrator stops and disables the httpd service and then the application works. The administrator, however, discovers httpd is running again after reboot.

  Given this behavior, which of the following will prevent httpd from starting on boot?

  A. systemctl mask httpd
  B. systemctl blame httpd
  C. systemctl disable httpd
  D. systemctl stop httpd
  C. systemctl disable httpd

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  Reference: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system_administrators_guide/chap-managing_services_with_systemd