Linux Essentials Chapter 6 Exam Answer 2016

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