Linux Essentials – Chapter 06 Exam Answers 2019 + PDF file

1. Hidden files are files that begin with what character?
   • A dash (-)
   • A plus (+)
   • A period (.)
   • An asterisk (*)
2. What option for the ls command will display all files, including hidden files?
   • -L
   • -H
   • -w
   • -a
3. The top-level directory on a Linux system is represented as:
   • /
   • C:
   • /home
   • /root
4. Is the following path absolute or relative?
   /etc/ppp
   • Absolute
   • Relative
5. Is the following path absolute or relative?
   sysadmin/Documents
   • Relative
   • Absolute
6. Is the following path absolute or relative?
   ../../home/sysadmin
   • Relative
   • Absolute
7. The tilde (~) is used to represent:
   • A user’s home directory
   • Any two single characters
   • The directory above the current working directory
   • Nothing; it has no special meaning
8. Which of the following commands can be used to access the home directory of the user “bob” while logged in as root? (choose two)
   • cd /home/bob
   • cd ~bob
   • cd &&
   • ~bob
9. The double dot (..) can be used with the cd command to represent:
   • The directory above the current working directory
   • Nothing; it has no special meaning.
   • Any two single characters
   • A user’s home directory.
10. The cd command by itself will take you to what directory?
    • The system root directory
    • None; it is not a valid command
    • The directory above the current working directory
    • Your home directory
11. What command will allow you to change your current working directory?
    • chdir
    • list
    • cd
    • ls
12. The double dot (..) can be used to represent the directory…
    • …above the current directory.
    • …below the current directory.
    • …with any two single numbers.
    • …above the current directory only when using the cd command.
13. The ls command without options or arguments…
    • …generates an error as this command requires arguments.
    • …lists the contents of the current directory.
    • …prompts for a directory to list.
    • …lists the contents of a user’s home directory.
14. The first character in a long listing (ls -l) indicates:
    • The permissions
    • If something is a file, directory, or symbolic link
    • The owner
    • The size
15. Which option for the ls command, when used in conjunction with the -l option, will display human-readable sizes?
    • -M
    • -S
    • -H
    • -h
16. Which of the following commands will prevent any aliased options to the ls command?
    • /ls
    • \ls
    • %ls
    • ls
17. The ls command color codes results by default.
    True or False?
    • True
    • False
18. The command ls -S will sort files:
    • By size, smallest to largest
    • By number of symlinks, largest to smallest
    • By modification date, newest to oldest
    • By size, largest to smallest
19. When using the cp command, you must provide both a source and a destination.
    True or False?
    • True
    • False
20. Which option(s) can be used to prevent cp from overwriting an existing file? (choose two)
    • -n
    • -N
    • -z
    • -i
21. The command rm -r will…
    • remove a directory along with any files or subdirectories.
    • prompt for each confirmation before deleting each file in a directory.
    • remove only empty directories.
    • generate an error; -r isn’t a valid option.
22. Which option can be used with the rm command to prompt before deleting?
    • -i
    • I
    • -P
    • A
23. The rm command can delete multiple files at once.
    True or False?
    • True
    • False
24. Which of the following commands can be used to rename a file?
    • name
    • mv
    • rn
    • cp
25. The touch command can be used to: (choose two)
    • Create new files
    • Change a file’s name
    • Update the time stamp of existing files
    • Change ownership of a file

26. The whatis command is the same as man -w.

• false
• true