NDG Linux Essentials 2.0 Final Exam (Chapter 9-18) Online

1. Question

3 points

Which of the following are traits of a multiuser operating system?
(choose three)

Resources are shared between users
Users can protect their information from other users
Many users can log in simultaneously with a unique account
Each user can only log in once per day
An administrative user gets a dedicated CPU

2. Question

1 points

A pipe allows you to…

...send the same input to multiple commands.
...type multiple commands at one prompt.
...send the output of one command to another.
...send the output of a command to a file.

3. Question

1 points

Channel 2 is:

STDALL
STDOUT
STDERR
STDIN

4. Question

1 points

The grep command…

...will display all the lines that begin with the specified Regular Expression.
...will display all the lines in a file containing the specified Regular Expression.
...is not case sensitive.
...will display the line numbers in a file that contain a specified Regular Expression.

5. Question

2 points

Which of the following commands can be used to scroll through a text file?
(choose two)

cat
less
some
more

6. Question

1 points

Which command can be used to print line numbers?

ln
nl
sort
num

7. Question

2 points

Which are appropriate editors for writing shell scripts?
(choose two)

LibreOffice Writer
vi
Firefox
nano
/bin/bash

8. Question

2 points

Which of the following are correct about for and while loops?
(choose two)

while loops operate over a fixed list of items
for loops have a test each cycle to determine if it should run again
while loops have a test each cycle to determine if it should run again
for loops operate over a fixed list of items
for loops require a variable over which to iterate

9. Question

1 points

What is the correct way to assign the word “Hello” to a variable?

$A=”Hello”
A = “Hello”
echo “Hello” > A
A=”Hello”
echo $A “Hello”

10. Question

1 points

What is the correct way to save the current directory to a variable?

pwd $A
A=cwd
A=`pwd`
A=pwd
pwd | $A

11. Question

1 points

What is the meaning of $(( $i + 1)) ?

If i is 0, the loop will stop
This runs the command stored in variable i
This will return the value of the next argument to the script
1 will be added to the i variable
This will return the value of the first argument to the script

12. Question

2 points

Which of the following are valid CPU types for Intel-based platforms?
(choose two)

64-bit
24-bit
32-bit
48-bit

13. Question

3 points

Choose all of the following statements that are true in regard to virtual RAM:
(choose three)

Virtual RAM is stored in the CPU
Virtual RAM is also called swap space
Virtual RAM is stored on a hard drive
Virtual RAM is used when available physical RAM is low.

14. Question

1 points

A division of a hard drive may be referred to as a _______ .

label
block
portion
partition

15. Question

1 points

The fdisk command is a tool used for working with the MBR partitioned disks.

True or False?

True
False

16. Question

2 points

Which of the following commands will display CPU information?
(choose two)

cpuinfo
lscpu
showcpu
lspic
arch

17. Question

1 points

The Process ID (PID) of the init process is:

100
0
1
varies

18. Question

1 points

What directory typically contains log files?

/proc/loc
/usr/log
/log
/var/log

19. Question

1 points

The /var directory has files that change over time.

True or False?

True
False

20. Question

2 points

Which of the following commands will allow you to view all processes on the system?
(choose two)

ps -ef
ps aux
ps -eLf
ps -A
ps

21. Question

1 points

Which directory is the root of the filesystem?

/sys
/
/var
/home
/root

22. Question

1 points

A service is…

...another name for a computer's hostname.
...a file that contains configuration information.
...like an IP address.
...a feature provided by one computer to another.

23. Question

1 points

Only servers have hostnames.
True or False?

True
False

24. Question

2 points

Which of the following are valid IPv4 addresses?
(choose two)

10.33.55.77
192.105.10.10.2
192.105.10.10
192.301.25.25

25. Question

1 points

Which of the following commands will allow you to log into a remote machine?

route
ssh
dig
netstat

26. Question

2 points

Which files contain user account information?
(choose two)

/etc/passwd
/etc/passwords
/etc/shadow
/etc/group

27. Question

1 points

Which command will display the UID, GID and groups your current user belongs to?

whoami
Who
about
id

28. Question

1 points

Each user belongs to at least one group.
True or False?

True
False

29. Question

1 points

Which command will display the users that are currently logged in to the system?

id
who
about
whoami

30. Question

1 points

Which command will display the groups that the root user belongs to?

all
all -t
group -r
id root
groups -a

31. Question

1 points

UIDs 1-499 are usually reserved for what kind of users?

Are not used for user accounts, but for group accounts
Log-in (human) users
Remote log-in accounts
System accounts, such as server processes

32. Question

1 points

Which of the following options for the useradd command allows root to specify the UID to be associated with the account?

-u
-g
-M
-G

33. Question

1 points

Which command can be used to determine a user’s most recent log in?

last
login
history
shell

34. Question

1 points

Which of the following files contains encrypted user password information?

/etc/shadow
/etc/group
/etc/usr
/etc/passwd

35. Question

1 points

Which of the following options for the useradd command allows you to use a different primary group then the default?

-G
-u
-U
-g

36. Question

1 points

Which of the following commands can be used to modify a user?

adduser
usermod
moduser
useradd

37. Question

2 points

Which of the following are methods for setting permissions using the chmod command?

(choose two)

letter
primary
symbolic
octal

38. Question

1 points

The chown command can be used to change the owner and group of a file.

True or False?

True
False

39. Question

1 points

The chmod command can be used on a file by:

The file owner and root
The file owner
Only root
A user that belongs to the files current group

40. Question

1 points

The “execute” permission is never set on files by default.
True or False?

True
False

41. Question

1 points

The “sticky bit” permission…

...changes the group ownership of existing files in a directory.
...prevents others from removing files they don't own from a common directory.
...sets the group ownership of any new file created in a directory.
...prevents others from overwriting files they don't own in common directories.

42. Question

1 points

The “setuid” permission…

...prevents the owner of a file from being changed.
...reports the output of a script to the owner.
...allows a command to be run as the file owner.
...allows files in a directory to be manipulated as by the directory owner.

43. Question

2 points

The “setgid” permission…
(choose two)

...prevents the group owner of a file from being changed.
...allows files created in a directory to be owned by the group that owns the directory.
...allows a command to be run as the group owner of the file.
...can only be set on files.

44. Question

2 points

Which of the following ls commands, when executed, will only show information about the directory itself?

(choose two)

ls -h
ld -d
ld -a
ls -ld

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