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XK0-006 CompTIA Linux+ V8 Exam is now Stable and With Pass Result | Test Your Knowledge for Free

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XK0-006 Practice Questions

CompTIA Linux+ V8 Exam

Last Update 4 days ago
Total Questions : 130

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Question # 21

A systems administrator is preparing a Linux system for application setup. The administrator needs to create an environment variable with a persistent value in one of the user accounts. Which of the following commands should the administrator use for this task?

Options:

A.  

export " VAR=SomeValue " > > ~/.ssh/profile

B.  

export VAR=value

C.  

VAR=value

D.  

echo " export VAR=value " > > ~/.bashrc

Discussion 0
Question # 22

An administrator receives reports that a web service is not responding. The administrator reviews the following outputs:

Question # 22

Which of the following is the reason the web service is not responding?

Options:

A.  

The private key needs to be renamed from server.crt to server, key so the service can find it.

B.  

The private key does not match the public key, and both keys should be replaced.

C.  

The private key is not in the correct location and needs to be moved to the correct directory.

D.  

The private key has the incorrect permissions and should be changed to 0755 for the service.

Discussion 0
Question # 23

A Linux administrator wants to make the enable_auth variable set to 1 and available to the environment of subsequently executed commands. Which of the following should the administrator use for this task?

Options:

A.  

let ENABLE_AUTH=1

B.  

ENABLE_AUTH=1

C.  

ENABLE_AUTH=$(echo $ENABLE_AUTH)

D.  

export ENABLE_AUTH=1

Discussion 0
Question # 24

Which of the following is the main reason for setting up password expiry policies?

Options:

A.  

To avoid using the same passwords repeatedly

B.  

To mitigate the use of exposed passwords

C.  

To force usage of passwordless authentication

D.  

To increase password strength and complexity

Discussion 0
Question # 25

An administrator wants to start an Ubuntu terminal in a container. Which of the following will allow the administrator to complete the task?

Options:

A.  

podman pull ubuntu /bin/bash

B.  

docker run -it ubuntu

C.  

containerd /usr/bin/sh ubuntu

D.  

runc exec -it ubuntu

Discussion 0
Question # 26

An administrator needs to remove the directory /home/user1/data and all of its contents. Which of the following commands should the administrator use?

Options:

A.  

rmdir -p /home/user1/data

B.  

ln -d /home/user1/data

C.  

rm -r /home/user1/data

D.  

cut -d /home/user1/data

Discussion 0
Question # 27

In the echo " profile-$num-$name " line of a shell script, the variable $num seems to not be expanding during execution. Which of the following notations ensures the value is expanded?

Options:

A.  

echo " profile-$(num)-$name "

B.  

echo ' profile-$num-$name '

C.  

echo " profile- ' $num ' -$name "

D.  

echo " profile-${num}-$name "

Discussion 0
Question # 28

Which of the following commands should an administrator use to convert a KVM disk file to a different format?

Options:

A.  

qemu-kvm

B.  

qemu-ng

C.  

qemu-io

D.  

qemu-img

Discussion 0
Question # 29

A systems administrator receives reports about connection issues to a secure web server. Given the following firewall and web server outputs:

Firewall output:

Status: active

To Action From

443/tcp DENY Anywhere

443/tcp (v6) DENY Anywhere (v6)

Web server output:

tcp LISTEN 0 4096 *:443 :

Which of the following commands best resolves this issue?

Options:

A.  

ufw disable

B.  

ufw allow 80/tcp

C.  

ufw delete deny https/tcp

D.  

ufw allow 4096/tcp

Discussion 0
Question # 30

A Linux administrator updates the DNS record for the company using:

cat /etc/bind/db.abc.com

The revised partial zone file is as follows:

ns1 IN A 192.168.40.251

ns2 IN A 192.168.40.252

www IN A 192.168.30.30

When the administrator attempts to resolve www.abc.com to its IP address, the domain name still points to its old IP mapping:

nslookup www.abc.com

Server: 192.168.40.251

Address: 192.168.40.251#53

Non-authoritative answer:

Name: www.abc.com

Address: 199.168.20.81

Which of the following should the administrator execute to retrieve the updated IP mapping?

Options:

A.  

systemd-resolve query www.abc.com

B.  

systemd-resolve status

C.  

service nslcd reload

D.  

resolvectl flush-caches

Discussion 0
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