Introduction to Linux I – Chapter 04 Exam Test Online 2019

1. Question

1 points

If you want to delete a variable, you can run:

wipe
clear
delete
unset

2. Question

1 points

To view all current variables, you can use:

dump
var
view
set

3. Question

1 points

To process a script file in the current context, you execute: (choose two)

.
include
source
exec

4. Question

1 points

Environment variables can be viewed by running: (choose two)

export -e
vars
export -p
env

5. Question

1 points

The PATH environment variable is used for:

Specifying locations that are writable for the user
Specifying directories to search for executable files
Specifying directories to contain documentation
Specifying locations where ordinary users can navigate

6. Question

1 points

Which of the following will create a variable?

VAR+value
VAR=value
VAR value
Var~value

7. Question

1 points

Which character(s) cannot be placed in variable names?

Upper-case alpha characters
Hyphen (“-“) character
Underscore (“_”) character
Lower-case alpha characters
Numeric characters

8. Question

1 points

Shell variables are used to:

Reboot the system
Prevent users from logging in
Hide passwords
Hold critical system information

9. Question

1 points

Local variables are:

Are not a valid type of variable
Passed into other shells and commands
Only available to the shell they are created in
Not used by shells at all

10. Question

1 points

Environment variables are:

Only available to the shell they are created in
Are not a valid type of variable
Passed into other shells and commands
Not used by shells at all

11. Question

1 points

Environment variables cannot be declared by which command?

typeset
declare
export
set

12. Question

1 points

The PATH variable will be used under which situation?

The command is an alias.
The command is not found.
A full path name to a command is provided.
The command is a function.

13. Question

1 points

The /bin directory contains:

Nothing; it is not a valid directory
The most fundamental commands that are essential for the operating system to function
Commands that have been compiled from local sources
Essential administrative commands

14. Question

1 points

The /sbin directory contains:

Commands that have been compiled from local sources
Nothing; it is not a valid directory
The most fundamental commands that are essential
Essential administrative commands

15. Question

1 points

The /usr/local/bin directory contains:

The most fundamental commands that are essential for the operating system to function
Nothing; it is not a valid directory
Commands that have been compiled from local sources
Essential administrative commands

16. Question

1 points

The path testdir/file.txt is:

An invalid path
A relative path
A circular path
An absolute path

17. Question

1 points

The path /data/file.txt is:

A circular path
An absolute path
A relative path
An invalid path

18. Question

1 points

Which of the following is a valid way to add the /data directory to the existing PATH variable?

$PATH=$PATH:/data
PATH=$PATH:/data
$PATH=/data
PATH=/data

19. Question

1 points

Which of the following files is specific to each user and executed every time a bash shell is opened?

~/.bashrc
~/.bash_profile
/etc/bashrc
/etc/profile

20. Question

1 points

Which of the following files is specific to each user and executed only during login?

~/.bash_profile
/etc/profile
/etc/bashrc
~/.bashrc

21. Question

1 points

Which of the following files is for all bash shell users and executed every time a bash shell is opened?

/etc/bashrc
/etc/profile
~/.bashrc
~/.bash_profile

22. Question

1 points

Which of the following files is for all bash shell users and executed only at login?

~/.bash_profile
~/.bashrc
/etc/bashrc
/etc/profile

23. Question

1 points

Which of the following commands will execute the last command that started with ec:

!!
!!ec
!ec
!-ec

24. Question

1 points

An absolute path always starts with which character?

.
/
~

25. Question

1 points

In the PATH variable, the __ character is used to separate the directories.

:
;
~
/

26. Question

1 points

The _____ command will allow you to see commands that you have previously executed.

hist
previous
history
last

27. Question

1 points

The _____ variable stores directories that the shell used to find executable files.

CD
DIR
PATHS
PATH

28. Question

1 points

When specifying a path, the __ character symbolizes the current directory.

..
/
~
.

29. Question

1 points

Which file can you place in your home directory to be executed when you log off the system?

/etc/bashrc
~/.bash_logout
~/.bashrc
~/.bash_profile

30. Question

1 points

The _____ command will tell you if a command exists as a built-in command, function, alias or a command located within the PATH variable.

set
export
declare
type

Average score
Your score

Quiz-summary

Information

Results

Categories

1. Question

Hint

2. Question

Hint

3. Question

Hint

4. Question

Hint

5. Question

Hint

6. Question

Hint

7. Question

Hint

8. Question

Hint

9. Question

Hint

10. Question

Hint

11. Question

Hint

12. Question

Hint

13. Question

Hint

14. Question

Hint

15. Question

Hint

16. Question

Hint

17. Question

Hint

18. Question

Hint

19. Question

Hint

20. Question

Hint

21. Question

Hint

22. Question

Hint

23. Question

Hint

24. Question

Hint

25. Question

Hint

26. Question

Hint

27. Question

Hint

28. Question

Hint

29. Question

Hint

30. Question

Hint