Linux+ Practice Quiz: XK0-005 Quiz 8

1. Which of the following is displayed when the uname -a command is run?

• The current username
• All system information
• The names of files and directories in the current directory
• The current working directory

2. Which of the following man page sections shows a list of options available for a Linux command and explains what the options do?

• DESCRIPTION
• TITLE
• SYNOPSIS
• NAME

3. You need to set the COMP variable to the value 1745. Which of the following commands sets the variable, so it is inherited by subsequent child shells?

• export COMP=1745
• COMP=1745
• set COMP to 1745
• set COMP=1745

4. Tim, a technician, creates a local variable named val and sets it to 5000 at the bash prompt. Tim wants to use the variable in a script. But when the script is executed, the value of val is not set to 5000.

Which of the following commands would allow Tim to set val as an environment variable that would be available to the script?

• exec val
• declare val
• echo $val=5000
• export val=5000

5. You have just finished installing an updated kernel on your email server that has been patched to solve a security vulnerability and wish to reboot as soon as possible. This is a busy time of day, and you do not want the server down any longer than necessary.

Which option prevents fsck from running after the reboot and allows the system to boot faster?

• shutdown -k
• shutdown -f
• shutdown -h
• shutdown -F

6. Which of the following X11 system components represent the applications requesting the display of pixel buffers on the screen?

• X11 server
• Window manager
• Desktop environment
• X client

7. You have performed an audit and have found active accounts for employees who no longer work for the company (including joer). You want to disable those accounts.

Which of the following commands will disable the joer user account?

• usermod -d joer
• usermod -u joer
• usermod -L joer
• usermod -l joer

8. Which of the following commands would you use to make nstevens the owner of all of the files and directories in the /docs directory?

• chown -R nstevens /docs
• chown nstevens /docs
• chown -v nstevens /docs
• chown -f nstevens /docs

9. Which of the following commands displays the filename, owner, group, and access control list for the mynotes file?

• setfacl mynotes
• ls mynotes
• getfacl mynotes
• chmod mynotes

10. Which of the following commands restricts all-new file permissions by applying a filter to prevent specific permissions from being assigned to the file?

• umask
• chown
• chmod
• ls -l