CompTIA XK0-004 問題集

質問 1：
When performing a routine server process inspection the systems administrator notices that about 300 processes similar to the following are running:
Root 7858 0 21:39 pts/0 00:00:00 [websrv] <defunct>
Malfunctioning software is found and removed from the server, but the administrator is now unable to terminate the remaining processes Which of the following is the BEST course of action for the administrator to take NEXT in order to remove.
A. Lower the process prionties
B. Raise the process priorities
C. Schedule a server reboot
D. Reinstall the OS on the server
正解：C

質問 2：
A user is unable to execute the command sudo su -on a newly provisioned system. Which of the following should the Linux administrator do to allow the user to execute that command?
A. Run restorecon to update SELinux contexts
B. Set the execute bit on the sudc command
C. Change the user's UID to 100
D. Add the user to the wheel group
正解：D

質問 3：
Users are unable to connect to a server using HTTPS. The administrator runs the following command on the remote system:

Then, the administrator runs the following command from a local workstation:

Which of the following steps should the administrator take to address the issue?
A. Update the self-signed certificate
B. Allow port 443 through the firewall
C. Configure the application to run on an active port
D. Start the application to run on port 443
正解：B

質問 4：
Which of the following files would a junior systems administrator check to verify DNS server settings?
A. /etc/rsolveconf
B. /etc/network
C. /etc/hosts
D. /etc/nsswitch,conf
正解：A

質問 5：
A Linux administrator needs to prevent the Postfix mail transfer agent from starting on boot.
Which of the following commands will accomplish this task?
A. /etc/init.d/postfix stop
B. systemctl stop postfix.service
C. /etc/init.d/postfix disable
D. systemctl disable postfix.service
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 6：
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.

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 file using a text editor, navigate to the PATH element, add the missing locations and run the . /etc/profile command to update the changes.
B. 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.
C. 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.
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.
正解：A

質問 7：
An organization wants to consolidate its entire user information in centralized storage using an X.500-based protocol. Which of the following protocols should be used for this implementation?
A. DNS
B. DHCP
C. LDAP
D. RADIUS
正解：C