PDF Download Free of XK0-005 Valid Practice Test Questions [Q370-Q393]

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PDF Download Free of XK0-005 Valid Practice Test Questions

XK0-005 Test Engine files, XK0-005 Dumps PDF

CompTIA XK0-005 exam is designed to test the candidate’s knowledge and skills in Linux administration, and passing XK0-005 exam validates their expertise in the field. XK0-005 exam consists of 90 multiple-choice and performance-based questions, and the candidate has 90 minutes to complete it. XK0-005 exam is available in English and Japanese, and the passing score is 720 out of 900.

Q370. A systems administrator is tasked with preventing logins from accounts other than root, while the file
/etc/nologin exists. Which of the following PAM modules will accomplish this task?

pam_login.so

pam_access.so

pam_logindef.so

pam_nologin.so

Q371. A Linux administrator needs to resolve a service that has failed to start. The administrator runs the following command:

The following output is returned

Which of the following is MOST likely the issue?

The service does not have permissions to read write the startupfile.

The service startupfile size cannot be 81k.

The service startupfile cannot be owned by root.

The service startupfile should not be owned by the root group.

Q372. A server is experiencing intermittent connection issues. Some connections to the Internet work as intended, but some fail as if there is no connectivity. The systems administrator inspects the server configuration:

Which of the following is MOST likely the cause of the issue?

An internal-only DNS server is configured.

The IP netmask is wrong for ens3.

Two default routes are configured.

The ARP table contains incorrect entries.

Q373. A systems administrator is troubleshooting connectivity issues and trying to find out why a Linux server is not able to reach other servers on the same subnet it is connected to. When listing link parameters, the following is presented:

Based on the output above, which of following is the MOST probable cause of the issue?

The address ac:00:11:22:33:cd is not a valid Ethernet address.

The Ethernet broadcast address should be ac:00:11:22:33:ff instead.

The network interface eth0 is using an old kernel module.

The network interface cable is not connected to a switch.

Q374. A Linux administrator is testing connectivity to a remote host on a shared terminal. The administrator wants to allow other users to access the terminal while the command is executing.
Which of the following commands should the administrator use?

bg ping remotehost

fg ping remotehost

ping remotehost < results

ping remotehost &

Q375. A systems administrator wants to delete app . conf from a Git repository. Which of the following commands will delete the file?

git tag app. conf

git commit app . conf

git checkout app . conf

git rm app. conf

Q376. A junior Linux administrator is tasked with installing an application. The installation guide states the application should only be installed in a run level 5 environment.

Which of the following commands would ensure the server is set to runlevel 5?

systemct1 isolate multi-user.target

systemct1 isolate graphical.target

systemct1 isolate network.target

systemct1 isolate basic.target

Q377. A Linux administrator was notified that a virtual server has an I/O bottleneck. The Linux administrator analyzes the following output:

Given there is a single CPU in the sever, which of the following is causing the slowness?

The system is running out of swap space.

The CPU is overloaded.

The memory is exhausted.

The processes are paging.

Q378. A developer reported an incident involving the application configuration file /etc/httpd/conf/httpd.conf that is missing from the server. Which of the following identifies the RPM package that installed the configuration file?

rpm -qf /etc/httpd/conf/httpd.conf

rpm -ql /etc/httpd/conf/httpd.conf

rpm -query /etc/httpd/conf/httpd.conf

rpm -q /etc/httpd/conf/httpd.conf

Q379. A Linux administrator needs to analyze a failing application that is running inside a container. Which of the following commands allows the Linux administrator to enter the running container and analyze the logs that are stored inside?

docker run -ti app /bin/sh

podman exec -ti app /bin/sh

podman run -d app /bin/bash

docker exec -d app /bin/bash

Q380. One leg of an LVM-mirrored volume failed due to the underlying physical volume, and a systems administrator is troubleshooting the issue. The following output has been provided:

Given this scenario, which of the following should the administrator do to recover this volume?

Reboot the server. The volume will automatically go back to linear mode.

Replace the failed drive and reconfigure the mirror.

Reboot the server. The volume will revert to stripe mode.

Recreate the logical volume.

The administrator should replace the failed drive and reconfigure the mirror to recover the volume. The LVM (Logical Volume Manager) is a tool for managing disk space on Linux systems. The LVM allows the administrator to create logical volumes that span across multiple physical volumes, such as hard disks or partitions. The LVM also supports different types of logical volumes, such as linear, striped, or mirrored. A mirrored logical volume is a type of logical volume that creates a copy of the data on another physical volume, providing redundancy and fault tolerance. The output shows that the logical volume is mirrored and that one leg of the mirror has failed due to the underlying physical volume. This means that one of the physical volumes that contains the data of the logical volume is damaged or missing. This can cause data loss and performance degradation. The administrator should replace the failed drive and reconfigure the mirror to recover the volume. The administrator should identify the failed physical volume by using commands such as pvdisplay, vgdisplay, or lvdisplay. The administrator should then remove the failed physical volume from the volume group by using the vgreduce command. The administrator should then install a new drive and create a new physical volume by using the pvcreate command. The administrator should then add the new physical volume to the volume group by using the vgextend command. The administrator should then reconfigure the mirror by using the lvconvert command. The administrator should replace the failed drive and reconfigure the mirror to recover the volume. This is the correct answer to the question. The other options are incorrect because they either do not recover the volume (reboot the server. The volume will automatically go back to linear mode or reboot the server. The volume will revert to stripe mode) or do not preserve the data of the volume (recreate the logical volume). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Storage, pages 333-334.

Q381. While inspecting a recently compromised Linux system, the administrator identified a number of processes that should not have been running:

Which of the following commands should the administrator use to terminate all of the identified processes?

pkill -9 -f “upload*.sh”

kill -9 “upload*.sh”

killall -9 -upload*.sh”

skill -9 “upload*.sh”

Q382. Several users reported that they were unable to write data to the /oracle1 directory. The following output has been provided:

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

df -i /oracle1

fdisk -1 /dev/sdb1

lsblk /dev/sdb1

du -sh /oracle1

Q383. The administrator comptia is not able to perform privileged functions on a newly deployed system. Given the following command outputs:

Which of the following is the reason that the administrator is unable to perform the assigned duties?

The administrator needs a password reset.

The administrator is not a part of the correct group.

The administrator did not update the sudo database.

The administrator’s credentials need to be more complex.

Q384. An administrator accidentally installed the httpd RPM package along with several dependencies. Which of the following options is the best way for the administrator to revert the package installation?

dnf clean all

rpm -e httpd

apt-get clean

yum history undo last

Q385. An administrator deployed a Linux server that is running a web application on port 6379/tcp.
– SELinux is in enforcingmode based on organization policies.
– The port is open on the firewall.
– Users who are trying to connect to a local instance of the web application receive Error 13, Permission denied.
The administrator ran some commands that resulted in the following output:

Which of the following commands should be used to resolve the issue?

semanage port -d -t http_port_t -p tcp 6379

semanage port -a -t http_port_t -p tcp 6379

semanage port -a http_port_t -p top 6379

semanage port -l -t http_port_tcp 6379

Q386. A Linux administrator is tasked with adding users to the system. However, the administrator wants to ensure the users’ access will be disabled once the project is over. The expiration date should be 2021-09-30. Which of the following commands will accomplish this task?

sudo useradd -e 2021-09-30 Project_user

sudo useradd -c 2021-09-30 Project_user

sudo modinfo -F 2021-09-30 Project_uses

sudo useradd -m -d 2021-09-30 Project_user

Q387. An administrator is provisioning an Apache web server. When the administrator visits the server website, the browser displays a message indicating the website cannot be reached. Which of the following commands should the administrator use to verify whether the service Is running?

systemctl status httpd

systemctl mask httpd

systemctl reload httpd

systemctl restart httpd

Q388. A Linux administrator is trying to start the database service on a Linux server but is not able to run it. The administrator executes a few commands and receives the following output:

Which of the following should the administrator run to resolve this issue? (Select two).

systemctl unmask mariadb

journalctl -g mariadb

dnf reinstall mariadb

systemctl start mariadb

chkconfig mariadb on

service mariadb reload

Q389. A Linux engineer set up two local DNS servers (10.10.10.10 and 10.10.10.20) and was testing email connectivity to the local mail server using the mail command on a local machine when the following error appeared:

The local machine DNS settings are:

Which of the following commands could the engineer use to query the DNS server to get mail server information?

dig @example.com 10.10.10.20 a

dig @10.10.10.20 example.com mx

dig @example.com 10.10.10.20 ptr

dig @10.10.10.20 example.com ns

Q390. A user wants to configure the application “myapp” to start on runlevels 2, 3, 4, and 5 every time the system starts.
Which of the following commands will accomplish this task?

chkconfig –level 2345 myapp on

systemctl myapp on 2345

chkcinfig myapp –levels 2-5

systemctl –levels 2345 on

Q391. 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?

Merge the changes from the feature branch to the master branch.

Save the changes to the master branch automatically with each Git commit.

Clone the feature branch into the master branch.

Pull the changes from the feature branch into the master branch.

Q392. A Linux administrator generated a list of users who have root-level command-line access to the Linux server to meet an audit requirement. The administrator analyzes the following /etc/passwd and /etc/sudoers files:
$ cat /etc/passwd
root:x: 0:0: :/home/root: /bin/bash
lee: x: 500: 500: :/home/lee:/bin/tcsh
mallory:x: 501:501: :/root:/bin/bash
eve:x: 502: 502: /home/eve:/bin/nologin
carl:x:0:503: :/home/carl:/bin/sh
bob:x: 504: 504: : /home/bob:/bin/ksh
alice:x: 505:505: :/home/alice:/bin/rsh
$ cat /etc/sudoers
Cmnd_Alias SHELLS = /bin/tcsh, /bin/sh, /bin/bash
Cmnd_Alias SYSADMIN = /usr/sbin/tcpdump
ALL = (ALL) ALL
ALL = NOPASSWD: SYSADMIN
Which of the following users, in addition to the root user, should be listed in the audit report as having root-level command-line access? (Select two).

Carl

Lee

Mallory

Eve

Bob

Alice

Q393. An administrator needs to increase the system priority of a process with PID 2274. Which of the following commands should the administrator use to accomplish this task?

renice -n -15 2274

nice -15 2274

echo “-15” > /proc/PID/2274/priority

ps -ef I grep 2274