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XK0-005 Exam Dumps - CompTIA Linux+ Questions and Answers

Question # 24

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?

Options:

A.

pkill -9 -f "upload*.sh"

B.

kill -9 "upload*.sh"

C.

killall -9 -upload*.sh"

D.

skill -9 "upload*.sh"

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Question # 25

A Linux administrator modified the SSH configuration file. Which of the following commands should be used to apply the configuration changes?

Options:

A.

systemct1 stop sshd

B.

systemct1 mask sshd

C.

systemct1 reload sshd

D.

systemct1 start sshd

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Question # 26

A cloud engineer is installing packages during VM provisioning. Which of the following should the engineer use to accomplish this task?

Options:

A.

Cloud-init

B.

Bash

C.

Docker

D.

Sidecar

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Question # 27

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?

Options:

A.

iptables -F INPUT -j 192.168.10.50 -m DROP

B.

iptables -A INPUT -s 192.168.10.30 -j DROP

C.

iptables -i INPUT --ipv4 192.168.10.50 -z DROP

D.

iptables -j INPUT 192.168.10.50 -p DROP

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Question # 28

Users have been unable to reach www.comptia.org from a Linux server. A systems administrator is troubleshooting the issue and does the following:

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

Options:

A.

The name www.comptia.org does not point to a valid IP address.

B.

The server 192.168.168.53 is unreachable.

C.

No default route is set on the server.

D.

The network interface eth0 is disconnected.

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Question # 29

A Linux system is failing to boot. The following error is displayed in the serial console:

[[1;33mDEPEND[Om] Dependency failed for /data.

[[1;33mDEPEND[Om] Dependency failed for Local File Systems

...

Welcome to emergency mode! After logging in, type "journalctl -xb" to viewsystem logs, "systemct1 reboot" to reboot, "systemct1 default" to try again to boot into default mode.

Give root password for maintenance

(or type Control-D to continue}

Which of the following files will need to be modified for this server to be able to boot again?

Options:

A.

/etc/mtab

B.

/dev/sda

C.

/etc/fstab

D.

/ete/grub.conf

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Question # 30

A systems administrator detected corruption in the /data filesystem. Given the following output:

Which of the following commands can the administrator use to best address this issue?

Options:

A.

umount /data mkfs . xfs /dev/sclcl mount /data

B.

umount /data xfs repair /dev/ sdcl mount /data

C.

umount /data fsck /dev/ sdcl mount / data

D.

umount /data pvs /dev/sdcl mount /data

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Question # 31

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?

Options:

A.

Sync the mount units.

B.

Mount the filesystem manually.

C.

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

D.

Remount all the missing filesystems

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Question # 32

A systems administrator is notified that the mysqld process stopped unexpectedly. The systems administrator issues the following command:

sudo grep –i -r ‘out of memory’ /var/log

The output of the command shows the following:

kernel: Out of memory: Kill process 9112 (mysqld) score 511 or sacrifice child.

Which of the following commands should the systems administrator execute NEXT to troubleshoot this issue? (Select two).

Options:

A.

free -h

B.

nc -v 127.0.0.1 3306

C.

renice -15 $( pidof mysql )

D.

lsblk

E.

killall -15

F.

vmstat -a 1 4

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Question # 33

In order to copy data from another VLAN, a systems administrator wants to temporarily assign IP address 10.0.6 5/24 to the newly added network interface enp1s0f1. Which of the following commands should the administrator run to achieve the goal?

Options:

A.

ip addr add 10.0.6.5/24 dev enpls0f1

B.

echo "IPV4_ADDRESS=10.0.6.5/24" > /etc/sysconfig/network-scripts/ifcfg-enplsOfl

C.

ifconfig 10.0.6.5/24 enpsIs0f1

D.

nmcli conn add lpv4.address-10.0.6.5/24 ifname enpls0f1

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Exam Code: XK0-005
Exam Name: CompTIA Linux+ Exam
Last Update: Jul 31, 2025
Questions: 487
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