Pass CompTIA XK0-005 PDF Dumps Recently Updated 895 Questions [Q85-Q100]

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Pass CompTIA XK0-005 PDF Dumps | Recently Updated 895 Questions

Updated Test Engine to Practice XK0-005 Dumps & Practice Exam

To become certified, candidates must pass the CompTIA XK0-005 exam, which is available in English, Japanese, and Portuguese. XK0-005 exam is intended for IT professionals who have at least 12 months of experience working with Linux systems, as well as a basic understanding of computer hardware and networking concepts.

NO.85 Users have reported that the interactive sessions were lost on a Linux server. A Linux administrator verifies the server was switched to rescue.target mode for maintenance. Which of the following commands will restore the server to its usual target?

telinit 0

systemct1 reboot

systemct1 get-default

systemct1 emergency

NO.86 A systems administrator is investigating an issue in which one of the servers is not booting up properly. The journalctl entries show the following:

Which of the following will allow the administrator to boot the Linux system to normal mode quickly?

Comment out the /opt/app filesystem in /etc/fstab and reboot.

Reformat the /opt/app filesystem and reboot.

Perform filesystem checks on local filesystems and reboot.

Trigger a filesystem relabel and reboot.

NO.87 A user sends a request to access a virtual server via SSH. Which of the following commands is used to open the SSH standard port?

firewalld-cmd –permanent –add-port=22/tcp

iptables-save | grep dport-22/tcp

iptables -A INPUT -p tcp –dport sshd -j ACCEPT

firewalld-cmd –remove-service=ssh –permanent

NO.88 Based on an organization’s new cybersecurity policies, an administrator has been instructed to ensure that, by default, all new users and groups that are created fall within the specified values below.

To which of the following configuration files will the required changes need to be made?

/etc/login.defs

/etc/security/limits.conf

/etc/default/useradd

/etc/profile

NO.89 A cloud engineer needs to remove all dangling images and delete all the images that do not have an associated container. Which of the following commands will help to accomplish this task?

docker images prune -a

docker push images -a

docker rmi -a images

docker images rmi –all

NO.90 A junior administrator is setting up a new Linux server that is intended to be used as a router at a remote site.
Which of the following parameters will accomplish this goal?

NO.91 A systems administrator is enabling LUKS on a USB storage device with an ext4 filesystem format. The administrator runs dmesg and notices the following output:

Given this scenario, which of the following should the administrator perform to meet these requirements? (Choose three.)

gpg /dev/sdc1

pvcreate /dev/sdc

mkfs.ext4 /dev/mapper/LUKS0001 – L ENCRYPTED

umount /dev/sdc

fdisk /dev/sdc

mkfs.vfat /dev/mapper/LUKS0001 – L ENCRYPTED

wipefs -a/dev/sdb1

cryptsetup luksFormat /dev/sdc1

NO.92 A systems administrator is investigating why one of the servers has stopped connecting to the internet.

Which of the following is causing the issue?

The DNS address has been commented out in the configuration file.

The search entry in the /etc/resolv.conf file is incorrect.

Wired connection 1 is offline.

No default route is defined.

NO.93 A junior systems administrator is upgrading a package that was installed on a Red Hat-based system.
The administrator is tasked with the following:
– Update and install the new package.
– Verify the new package version is installed.
Which of the following should be done to BEST accomplish these task? (Choose two.)

yum install <package name>

yum upgrade

rpm -e <package name>

rpm -qa

apt-get <package name>

apt-get upgrade

NO.94 A junior administrator is setting up a new Linux server that is intended to be used as a router at a remote site.
Which of the following parameters will accomplish this goal?

NO.95 A systems administrator is deploying three identical, cloud-based servers. The administrator is using the following code to complete the task:

Which of the following technologies is the administrator using?

Ansible

Puppet

Chef

Terraform

NO.96 A systems administrator is tasked with creating a cloud-based server with a public IP address.

Which of the following technologies did the systems administrator use to complete this task?

Puppet

Git

Ansible

Terraform

NO.97 A Linux administrator recently changed the IP addresses of all the web servers from 10.10.50.x to
10.10.100.x. The administrator needs to update the serverlist.txt file to reflect the change.
The file contains the following:
10:WebSvr01:10.10.50.21:Main
11:WebSvr02:10.10.50.22:Acconting
12:WebSvr03:10.10.50.23:Intranet
20:NFS01:10.10.20.21:FileServer
30:SMTP01:10.10.30.31:Email
Which of the following commands will change the IP addresses and update the files in place?

sed ‘s|.50|.100|g’ serverlist.txt

sed -g ‘s|.50|.100|a’ serverlist.txt

sed -i ‘s|.50|.100|’ serverlist.txt

sed -i ‘s|.50|.100|g’ serverlist.txt

NO.98 A systems administrator is tasked with installing GRUB on the legacy MBR of the SATA hard drive. Which of the following commands will help the administrator accomplish this task?

grub-install /dev/hda

grub-install /dev/sda

grub-install /dev/sr0

grub-install /dev/hd0,0

NO.99 A Linux engineer needs to create a custom script, cleanup.sh, to run at boot as part of the system services. Which of the following processes would accomplish this task?

Create a unit file in the /etc/default/ directory.
systemct1 enable cleanup
systemct1 is-enabled cleanup

Create a unit file in the /etc/ske1/ directory.
systemct1 enable cleanup
systemct1 is-enabled cleanup

Create a unit file in the /etc/systemd/system/ directory.
systemct1 enable cleanup
systemct1 is-enabled cleanup

Create a unit file in the /etc/sysctl.d/ directory.
systemct1 enable cleanup
systemct1 is-enabled cleanup

The process that will accomplish the task of creating a custom script to run at boot as part of the system services is:
Create a unit file in the /etc/systemd/system/ directory. A unit file is a configuration file that defines the properties and behavior of a systemd service. The systemd is a system and service manager that controls the startup and operation of Linux systems. The /etc/systemd/system/ directory is the location where the administrator can create and store custom unit files. The unit file should have a name that matches the name of the script, such as cleanup.service, and should contain the following sections and options:
[Unit]: This section provides the general information about the service, such as the description, dependencies, and conditions. The administrator should specify the following options in this section:
Description: A brief description of the service, such as “Custom cleanup script”.
After: The name of another unit that this service should start after, such as “network.target”.
ConditionPathExists: The path of the file or directory that must exist for the service to start, such as “/opt/scripts/cleanup.sh”.
[Service]: This section defines how the service should be started and stopped, and what commands should be executed. The administrator should specify the following options in this section:
Type: The type of the service, such as “oneshot”, which means that the service will run once and then exit.
ExecStart: The command that will start the service, such as “/bin/bash /opt/scripts/cleanup.sh”.
RemainAfterExit: A boolean value that indicates whether the service should remain active after the command exits, such as “yes”.
[Install]: This section defines how the service should be enabled and under what circumstances it should be started. The administrator should specify the following option in this section:
WantedBy: The name of another unit that wants this service to be started, such as “multi-user.target”, which means that the service will be started when the system reaches the multi-user mode.
Run the command systemct1 enable cleanup. This command will enable the service and create the necessary symbolic links to start the service at boot.
Run the command systemct1 is-enabled cleanup. This command will check the status of the service and confirm that it is enabled.
This process will create a custom script, cleanup.sh, to run at boot as part of the system services. This is the correct process to use to accomplish the task. The other options are incorrect because they either use the wrong directory for the unit file (/etc/default/, /etc/skel/, or /etc/sysctl.d/) or do not create a unit file at all. Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 15: Managing System Services, pages 457-459.

NO.100 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

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