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CompTIA Updated XK0-005 Exam Questions and Answers by ray

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CompTIA XK0-005 Exam Overview :

Exam Name: CompTIA Linux+ Exam
Exam Code: XK0-005 Dumps
Vendor: CompTIA Certification: Linux+
Questions: 401 Q&A's Shared By: ray
Question 56

An administrator changed the default port of an SSH server to 2222 on myhost, and clients are not able to connect. The administrator runs some commands and receives the following output:

vbnet

Copy code

$ ssh -p 2222 myhost

ssh:connect to host myhost on port 2222: No route to host

Which of the following commands should be run on myhost?

Options:

A.

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

B.

firewall-cmd --zone=public --add-port=2222

C.

iptables --zone=public --add-service=ssh

D.

iptables --zone=public --add-port=2222

Discussion
Question 57

A User on a Linux workstation needs to remotely start an application on a Linux server and then forward the graphical display of that application back to the Linux workstation. Which of the following would enable the user to perform this action?

Options:

A.

ssh -X user@server application

B.

ssh -y user@server application

C.

ssh user@server application

D.

ssh -D user@server application

Discussion
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Question 58

The development team wants to prevent a file from being modified by all users in a Linux system, including the root account. Which of the following commands can be used to accomplish this objective?

Options:

A.

chmod / app/conf/file

B.

setenforce / app/ conf/ file

C.

chattr +i /app/conf/file

D.

chmod 0000 /app/conf/file

Discussion
Question 59

A user is unable to remotely log on to a server using the server name server1 and port 22. The Linux engineer troubleshoots the issue and gathers the following information:

Which of the following is most likely causing the issue?

Options:

A.

server 1 is not in the DNS.

B.

sshd is running on a non-standard port.

C.

sshd is not an active service.

D.

serverl is using an incorrect IP address.

Discussion
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