Free XK0-004 Exam Dumps

Question 11

All users are reporting that they cannot connect to the SFTP server. The administrator runs a scan:
XK0-004 dumps exhibit
Which of the following would allow the administrator to fix the problem?

A. Allow SFTP connections on port 22 using /etc/sysconfig/iptables.
B. Allow SFTP connections on port 20 and 21 using /etc/sysconfig/iptables.
C. Allow SFTP connections on port 25 using /etc/sysconfig/iptables.
D. Allow SFTP connections on port 1456 using /etc/sysconfig/iptables.

Correct Answer:A

Question 12

A junior administrator needs to unload an older video kernel module. Which of the following commands would BEST accomplish this task?

A. modprobe
B. insmod
C. rmmod
D. chmod

Correct Answer:A

Question 13

In order to comply with new security policies, an administrator needs to prevent the SSH server from using insecure algorithms.
Which of the following files should be edited to accomplish this?

A. /etc/ssh/sshd_config
B. /etc/ssh/ssh_config
C. ~/.ssh/ssh_config
D. /etc/ssh/known_hosts

Correct Answer:A

Question 14

An administrator is attempting to block SSH connections to 192.168.10.24 using the Linux firewall. After implementing a rule, a connection refused error is displayed when attempting to SSH to 192.168.10.24.
Which of the following rules was MOST likely implemented?

A. iptables –A –p tcp –d 192.168.10.24 –dropt 22 –j REJECT
B. iptables –A –p tcp –d 192.168.10.24 –dropt 22 –j DROP
C. iptables –A –p tcp –d 192.168.10.24 –dropt 22 –j FORWARD
D. iptables –A –p tcp –d 192.168.10.24 –dropt 22 –j REFUSE

Correct Answer:A

Question 15

A junior Linux administrator is setting up system-wide configuration settings. The goal is to ensure the PATH environment variable includes the following locations for all users who log into a Linux system.
XK0-004 dumps exhibit
The administrator issues the following commands at the terminal:

Respectively, the output of these commands is as follows:

Given this output, which of the following would be the BEST action for the administrator to perform to address this issue?

A. Update the /etc/profile.d file using a text editor, navigate to the PATH element add the missing locations, and run the bash_completion.sh script to update the changes.
B. Update the /etc/profile file using a text editor, navigate to the PATH element, add the missing locations and run the . /etc/profile command to update the changes.
C. Update the /etc/profile.d file using a text editor, navigate to the PATH element, add the missing locations, and reboot to update the changes.
D. Update the /etc/profile file using a text editor navigate to the PATH element, add the missing locations, and restart the bash process to update the changes.

Correct Answer:B