100% Success CompTIA XK0-005 Dumps with Excellent Results

Jonnie Karnath2023-04-19T07:01:07+00:00

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1. When trying to log in remotely to a server, a user receives the following message:

The server administrator is investigating the issue on the server and receives the following outputs:

Which of the following is causing the issue?

The wrong permissions are on the user’s home directory.

The account was locked out due to three failed logins.

The user entered the wrong password.

The user has the wrong shell assigned to the account.

2. A user is asking the systems administrator for assistance with writing a script to verify whether a file exists.

Given the following:

Which of the following commands should replace the <CONDITIONAL> string?

if [ -f "$filename" ]; then

if [ -d "$filename" ]; then

if [ -f "$filename" ] then

if [ -f "$filename" ]; while

3. Some servers in an organization have been compromised. Users are unable to access to the organization’s web page and other services.

While reviewing the system log, a systems administrator notices messages from the kernel regarding firewall rules:

Which of the following commands will remediate and help resolve the issue?

A)

Option A

Option B

Option C

Option D

4. 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

5. A Linux user reported the following error after trying to connect to the system remotely:

ssh: connect to host 10.0.1.10 port 22: Resource temporarily unavailable

The Linux systems administrator executed the following commands in the Linux system while trying to diagnose this issue:

Which of the following commands will resolve this issue?

firewall-cmd --zone=public --permanent --add-service=22

systemctl enable firewalld; systemctl restart firewalld

firewall-cmd --zone=public --permanent --add-service=ssh

firewall-cmd --zone=public --permanent --add-port=22/udp

6. An administrator deployed a Linux server that is running a web application on port 6379/tcp.

SELinux is in enforcing mode 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

7. Which of the following technologies provides load balancing, encryption, and observability in containerized environments?

Virtual private network

Sidecar pod

Overlay network

Service mesh

8. A Linux administrator has logged in to a server for the first time and needs to know which services are allowed through the firewall.

Which of the following options will return the results for which the administrator is looking?

firewall-cmd ―get-services

firewall-cmd ―check-config

firewall-cmd ―list-services

systemctl status firewalld

9. A systems administrator installed a new software program on a Linux server. When the systems administrator tries to run the program, the following message appears on the screen.

Which of the following commands will allow the systems administrator to check whether the system supports virtualization?

dmidecode -s system-version

lscpu

sysctl -a

cat /sys/device/system/cpu/possible

10. 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.

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11. A Linux engineer has been notified about the possible deletion of logs from the file /opt/app/logs. The engineer needs to ensure the log file can only be written into without removing previous entries.

Which of the following commands would be BEST to use to accomplish this task?

chattr +a /opt/app/logs

chattr +d /opt/app/logs

chattr +i /opt/app/logs

chattr +c /opt/app/logs

12. A Linux administrator has been tasked with installing the most recent versions of packages on a RPM-based OS.

Which of the following commands will accomplish this task?

apt-get upgrade

rpm -a

yum updateinfo

dnf update

yum check-update

13. A Linux administrator was tasked with deleting all files and directories with names that are contained in the sobelete.txt file.

Which of the following commands will accomplish this task?

xargs -f cat toDelete.txt -rm

rm -d -r -f toDelete.txt

cat toDelete.txt | rm -frd

cat toDelete.txt | xargs rm -rf

14. A Linux administrator needs to create a new cloud.cpio archive containing all the files from the current directory.

Which of the following commands can help to accomplish this task?

ls | cpio -iv > cloud.epio

ls | cpio -iv < cloud.epio

ls | cpio -ov > cloud.cpio

ls cpio -ov < cloud.cpio

15. A Linux administrator is reviewing changes to a configuration file that includes the following section:

The Linux administrator is trying to select the appropriate syntax formatter to correct any issues with the configuration file.

Which of the following should the syntax formatter support to meet this goal?

Markdown

XML

YAML

JSON

16. An administrator recently updated the BIND software package and would like to review the default configuration that shipped with this version.

Which of the following files should the administrator review?

/etc/named.conf.rpmnew

/etc/named.conf.rpmsave

/etc/named.conf

/etc/bind/bind.conf

17. Users have been unable to save documents to /home/tmp/temp and have been receiving the following error:

Path not found

A junior technician checks the locations and sees that /home/tmp/tempa was accidentally created instead of /home/tmp/temp.

Which of the following commands should the technician use to fix this issue?

cp /home/tmp/tempa /home/tmp/temp

mv /home/tmp/tempa /home/tmp/temp

cd /temp/tmp/tempa

ls /home/tmp/tempa

18. A cloud engineer needs to block the IP address 192.168.10.50 from accessing a Linux server.

Which of the following commands will achieve this goal?

iptables -F INPUT -j 192.168.10.50 -m DROP

iptables -A INPUT -s 192.168.10.30 -j DROP

iptables -i INPUT --ipv4 192.168.10.50 -z DROP

iptables -j INPUT 192.168.10.50 -p DROP

19. A Linux administrator is troubleshooting the root cause of a high CPU load and average.

Which of the following commands will permanently resolve the issue?

renice -n -20 6295

pstree -p 6295

iostat -cy 1 5

kill -9 6295

20. A systems administrator made some unapproved changes prior to leaving the company. The newly hired administrator has been tasked with revealing the system to a compliant state.

Which of the following commands will list and remove the correspondent packages?

dnf list and dnf remove last

dnf remove and dnf check

dnf info and dnf upgrade

dnf history and dnf history undo last

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21. A systems administrator needs to clone the partition /dev/sdc1 to /dev/sdd1.

Which of the following commands will accomplish this task?

tar -cvzf /dev/sdd1 /dev/sdc1

rsync /dev/sdc1 /dev/sdd1

dd if=/dev/sdc1 of=/dev/sdd1

scp /dev/sdc1 /dev/sdd1

22. A DevOps engineer needs to download a Git repository from https://git.company.com/admin/project.git.

Which of the following commands will achieve this goal?

git clone https://git.company.com/admin/project.git

git checkout https://git.company.com/admin/project.git

git pull https://git.company.com/admin/project.git

git branch https://git.company.com/admin/project.git

23. A development team asks an engineer to guarantee the persistency of journal log files across system reboots.

Which of the following commands would accomplish this task?

grep -i auto /etc/systemd/journald.conf && systemctl restart systemd-journald.service

cat /etc/systemd/journald.conf | awk '(print $1,$3)'

sed -i 's/auto/persistent/g' /etc/systemd/journald.conf && sed -i 'persistent/s/ˆ#//q' /etc/systemd/journald.conf

journalctl --list-boots && systemctl restart systemd-journald.service

24. A cloud engineer needs to change the secure remote login port from 22 to 49000.

Which of the following files should the engineer modify to change the port number to the desired value?

/etc/host.conf

/etc/hostname

/etc/services

/etc/ssh/sshd_config

25. A Linux administrator cloned an existing Linux server and built a new server from that clone.

The administrator encountered the following error after booting the cloned server:

The administrator performed the commands listed below to further troubleshoot and mount the missing filesystem:

Which of the following should administrator use to resolve the device mismatch issue and mount the disk?

mount disk by device-id

fsck -A

mount disk by-label

mount disk by-blkid

26. A Linux administrator is creating a primary partition on the replacement hard drive for an application server.

Which of the following commands should the administrator issue to verify the device name of this partition?

sudo fdisk /dev/sda

sudo fdisk -s /dev/sda

sudo fdisk -l

sudo fdisk -h

27. A Linux system is failing to start due to issues with several critical system processes.

Which of the following options can be used to boot the system into the single user mode? (Choose two.)

Execute the following command from the GRUB rescue shell: mount -o remount, ro/sysroot.

Interrupt the boot process in the GRUB menu and add systemd.unit=single in the kernel line.

Interrupt the boot process in the GRUB menu and add systemd.unit=rescue.target in the kernel line.

Interrupt the boot process in the GRUB menu and add single=user in the kernel line.

Interrupt the boot process in the GRUB menu and add init=/bin/bash in the kernel line.

Interrupt the boot process in the GRUB menu and add systemd.unit=single.target in the kernel line.

28. CORRECT TEXT

Junior system administrator had trouble installing and running an Apache web server on a Linux server. You have been tasked with installing the Apache web server on the Linux server and resolving the issue that prevented the junior administrator from running Apache.

INSTRUCTIONS

Install Apache and start the service. Verify that the Apache service is running with the defaults.

Typing “help” in the terminal will show a list of relevant event commands.

If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

29. A Linux systems administrator needs to copy files and directories from Server A to Server B.

Which of the following commands can be used for this purpose? (Select TWO)

rsyslog

rsync

reposync

scp

ssh

30. 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.

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31. 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

32. A systems engineer is adding a new 1GB XFS filesystem that should be temporarily mounted under /ops/app.

Which of the following is the correct list of commands to achieve this goal?

A)

Option A

Option B

Option C

Option D

33. A Linux administrator has installed a web server, a database server, and a web application on a server. The web application should be active in order to render the web pages. After the administrator restarts the server, the website displays the following message in the browser: Error establishing a database connection.

The Linux administrator reviews the following relevant output from the systemd init files:

The administrator needs to ensure that the database is available before the web application is started.

Which of the following should the administrator add to the HTTP server .service file to accomplish this task?

TRIGGERS=mariadb.service

ONFAILURE=mariadb.service

WANTEDBY=mariadb.service

REQUIRES=mariadb.service

34. A systems administrator frequently connects to a remote host via SSH and a non-standard port. The systems administrator would like to avoid passing the port parameter on the command line every time.

Which of the following files can be used to set a different port value for that host?

/etc/ssh/sshd_config

/etc/ssh/moduli

~/.ssh/config

~/.ssh/authorized_keys

35. A systems administrator is compiling a report containing information about processes that are listening on the network ports of a Linux server.

Which of the following commands will allow the administrator to obtain the needed information?

ss -pint

tcpdump -nL

netstat -pn

lsof -It

36. A Linux administrator needs to obtain a list of all volumes that are part of a volume group.

Which of the following commands should the administrator use to accomplish this task?

vgs

lvs

fdisk -1

pvs

37. A cloud engineer is asked to copy the file deployment.yaml from a container to the host where the container is running.

Which of the following commands can accomplish this task?

docker cp container_id/deployment.yaml deployment.yaml

docker cp container_id:/deployment.yaml deployment.yaml

docker cp deployment.yaml local://deployment.yaml

docker cp container_id/deployment.yaml local://deployment.yaml

38. A Linux administrator found many containers in an exited state.

Which of the following commands will allow the administrator to clean up the containers in an exited state?

docker rm --all

docker rm $(docker ps -aq)

docker images prune *

docker rm --state exited

39. A systems administrator is receiving tickets from users who cannot reach the application app that should be listening on port 9443/tcp on a Linux server.

To troubleshoot the issue, the systems administrator runs netstat and receives the following output:

Based on the information above, which of the following is causing the issue?

The IP address 0.0.0.0 is not valid.

The application is listening on the loopback interface.

The application is listening on port 1234.

The application is not running.

40. A Linux administrator rebooted a server. Users then reported some of their files were missing. After doing some troubleshooting, the administrator found one of the filesystems was missing. The filesystem was not listed in /etc/f stab and might have been mounted manually by someone prior to reboot.

Which of the following would prevent this issue from reoccurring in the future?

Sync the mount units.

Mount the filesystem manually.

Create a mount unit and enable it to be started at boot.

Remount all the missing filesystems

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41. A Linux administrator wants to set the SUID of a file named dev_team.text with 744 access rights.

Which of the following commands will achieve this goal?

chmod 4744 dev_team.txt

chmod 744 --setuid dev_team.txt

chmod -c 744 dev_team.txt

chmod -v 4744 --suid dev_team.txt

42. Which of the following directories is the mount point in a UEFI system?

/sys/efi

/boot/efi

/efi

/etc/efi

43. A systems administrator was tasked with assigning the temporary IP address/netmask 192.168.168.1/255.255.255.255 to the interface eth0 of a Linux server.

When adding the address, the following error appears:

# ip address add 192.168.168.1/33 dev eth0

Error: any valid prefix is expected rather than "192.168.168.1/33".

Based on the command and its output above, which of the following is the cause of the issue?

The CIDR value /33 should be /32 instead.

There is no route to 192.168.168.1/33.

The interface eth0 does not exist.

The IP address 192.168.168.1 is already in use.

44. 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.

45. 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

46. 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

47. A Linux engineer receives reports that files created within a certain group are being modified by users who are not group members. The engineer wants to reconfigure the server so that only file owners and group members can modify new files by default.

Which of the following commands would accomplish this task?

chmod 775

umask. 002

chactr -Rv

chown -cf

48. 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.

49. Due to low disk space, a Linux administrator finding and removing all log files that were modified more than 180 days ago.

Which of the following commands will accomplish this task?

find /var/log -type d -mtime +180 -print -exec rm {} ;

find /var/log -type f -modified +180 -rm

find /var/log -type f -mtime +180 -exec rm {}

find /var/log -type c -atime +180 Cremove

50. A Linux administrator is scheduling a system job that runs a script to check available disk space every hour. The Linux administrator does not want users to be able to start the job.

Given the following:

The Linux administrator attempts to start the timer service but receives the following error message:

Which of the following is MOST likely the reason the timer will not start?

The checkdiskspace.timer unit should be enabled via systemctl.

The timers.target should be reloaded to get the new configuration.

The checkdiskspace.timer should be configured to allow manual starts.

The checkdiskspace.timer should be started using the sudo command.

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51. A systems technician is working on deploying several microservices to various RPM-based systems, some of which could run up to two hours.

Which of the following commands will allow the technician to execute those services and continue deploying other microservices within the same terminal section?

gedit & disown

kill 9 %1

fg %1

bg %1 job name

52. A Linux administrator modified the SSH configuration file.

Which of the following commands should be used to apply the configuration changes?

systemctl stop sshd

systemctl mask sshd

systemctl reload sshd

systemctl start sshd

53. The security team has identified a web service that is running with elevated privileges A Linux administrator is working to change the systemd service file to meet security compliance standards.

Given the following output:

Which of the following remediation steps will prevent the web service from running as a privileged user?

Removing the ExecStarWusr/sbin/webserver -D SOPTIONS from the service file

Updating the Environment File line in the [Service] section to/home/webservice/config

Adding the User-webservice to the [Service] section of the service file

Changing the:nulti-user.target in the [Install] section to basic.target

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