Q1. - (Topic 3)
What is the default nice level when a process is started using the nice command?
A. -10
B. 10
C. 20
D. 0 Answer: B
Topic 4, Devices, Linux Filesystems, Filesystem Hierachy Standard
Answer:
Q2. - (Topic 3)
Which of the following commands will print the last 10 lines of a text file to the standard output?
A. cat -n 10 filename
B. dump -n 10 filename
C. head -n 10 filename
D. tail -n 10 filename
Answer: D
Q3. - (Topic 3)
Which grep command will print only the lines that do not end with a / in the file foo?
A. grep '/$' foo
B. grep '/#' foo
C. grep -v '/$' foo
D. grep -v '/#' foo
Answer: C
Q4. - (Topic 3)
What is the maximum niceness value that a regular user can assign to a process with the nice command when executing a new process?
A. 9
B. 19
C. 49
D. 99
Answer: B
Q5. - (Topic 1)
Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.)
A. shutdown -R 1 now
B. shutdown -single now
C. init 1
D. telinit 1
E. runlevel 1
Answer: C,D
Q6. - (Topic 4)
What does the command mount -a do?
A. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.
B. It shows all mounted file systems that have been automatically mounted.
C. It opens an editor with root privileges and loads /etc/fstab for editing.
D. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.
E. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.
Answer: D
Q7. - (Topic 3)
Which of the following are valid stream redirection operators within Bash? (Choose THREE correct answers.)
A. <
B. <<<
C. >
D. >>>
E. %>
Answer: A,B,C
Q8. - (Topic 3)
Which of the following commands is used to change options and positional parameters for a running Bash?
A. history
B. set
C. bashconf
D. setsh
E. envsetup
Answer: B
Q9. - (Topic 1)
Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct answers.)
A. 0
B. 1
C. 3
D. 5
E. 6
Answer: A,E
Topic 2, Linux Installation and Package Management
Q10. CORRECT TEXT - (Topic 3)
CompTIA LX0-103 : Practice Test
Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)
Answer: HISTFILE
Q11. - (Topic 3)
What is the purpose of the Bash built-in export command?
A. It allows disks to be mounted remotely.
B. It runs a command as a process in a subshell.
C. It makes the command history available to subshells.
D. It sets up environment variables for applications.
E. It shares NFS partitions for use by other systems on the network.
Answer: D
Q12. - (Topic 3)
In the vi editor, which of the following commands will copy the current line into the vi buffer?
A. c
B. cc
C. 1c
D. yy
E. 1y
Answer: D
Q13. - (Topic 3)
Which of the following files, located in the user home directory, is used to store the Bash history?
A. .bash_history
B. .bash_histfile
C. .history
D. .bashrc_history
E. .history_bash
Answer: A
Q14. CORRECT TEXT - (Topic 3)
Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)
Answer: mkdir, /usr/bin/mkdir
Q15. - (Topic 1)
Which of the following commands reboots the system when using SysV init? (Choose TWO correct answers.)
A. shutdown -r now
B. shutdown -r "rebooting"
C. telinit 6
D. telinit 0
E. shutdown -k now "rebooting"
Answer: A,C
Q16. - (Topic 4)
Which of the following settings for umask ensures that new files have the default permissions -rw-r----- ?
A. 0017
B. 0640
C. 0038
D. 0027
Answer: D
Q17. - (Topic 2)
Which of the following commands lists the dependencies of a given dpkg package?
A. apt-cache depends-on package
B. apt-cache dependencies package
C. apt-cache depends package
D. apt-cache requires package
Answer: C