CPNT 217 Basic Linux admin

Question 1

What is the primary reason for using Linux?

Answer 1

The cost

Question 2

Who developed Linux and when?

Answer 2

Linus Torvalds developed Linux in 1991.

Question 3

What is the Linux kernel?

Answer 3

The core component of Linux that interacts with hardware and software.

Question 4

What is the significance of the forward slash (/) in Linux?

Answer 4

It represents the root directory of the filesystem.

Question 5

What does the /bin directory contain?

Answer 5

Binaries or executables for system operations.

Question 6

What is stored in the /etc directory?

Answer 6

Configuration files for system startup.

Question 7

What is the purpose of the Ubuntu Terminal?

Answer 7

It is the command-line interface for issuing commands in Ubuntu.

Question 8

What is the Bourne Again Shell (bash)?

Answer 8

A popular shell in Linux that provides a command-line interface.

Question 9

What command is used to change directories in Linux?

Answer 9

The cd (change directory) command.

Question 10

What does the command ‘passwd’ do?

Answer 10

It allows users to reset their own password or another user’s password if they are root.

Question 11

What are man pages?

Answer 11

Manual pages that provide detailed information about commands and utilities.

Question 12

What is the purpose of the ‘whatis’ command?

Answer 12

It provides a brief description of a command.

Question 13

What does the command ‘shutdown’ do?

Answer 13

It shuts down the system.

Question 14

What is the function of the /home directory?

Answer 14

It is the main storage area for user data and configuration.

Question 15

What are the two types of UNIX commands?

Answer 15

User level commands and system administration commands.

Question 16

How can you recall previously used commands in the shell?

Answer 16

By using the up arrow key.

Question 17

What does the command ‘cd ..’ do?

Answer 17

It sends you back one directory.

Question 18

What does the command ‘cd ~’ do?

Answer 18

It returns the user to their home directory.

Question 19

What is the significance of case sensitivity in UNIX commands?

Answer 19

Most commands must be entered in lower case.

Question 20

What is the role of the shell in Linux?

Answer 20

It provides the interface between users and the kernel.

Question 21

What is the command to log out of a UNIX-based system?

Answer 21

You can use Ctrl D or the logoff command.

Question 22

What is the purpose of the /usr directory?

Answer 22

It contains files specific to the user.

Question 23

What does the command ‘halt’ do?

Answer 23

It stops all processes and shuts down the system.

Question 24

What is the function of the /mnt directory?

Answer 24

It serves as mount points for filesystems.

Question 25

What command would you use to get help on a specific command?

Answer 25

You can use 'help {command}' or 'man {command}'.

Question 26

What is an absolute path?

Answer 26

A path that begins at the root level and lists all subdirectories to the destination file.

Question 27

What does the command 'ls -l' do?

Answer 27

It lists directory contents in a long format.

Question 28

What command is used to switch users in Linux?

Answer 28

su (switch user)

Question 29

What does 'sudo' stand for?

Answer 29

Superuser do; it allows the use of elevated or administrator commands.

Question 30

What command is used to add a new user account?

Answer 30

useradd

Question 31

How do you change file permissions in Linux?

Answer 31

Using the chmod command.

Question 32

What does the octal value '5' represent in file permissions?

Answer 32

Read and execute permissions without write permission.

Question 33

What command is used to create a new directory?

Answer 33

mkdir (make directory)

Question 34

What does the command 'rm -r' do?

Answer 34

Removes directories recursively

Question 35

How do you copy a file in Linux?

Answer 35

Using the cp command.

Question 36

What command is used to move or rename a file?

Answer 36

mv (move)

Question 37

What does the 'find' command do?

Answer 37

Searches for files by name.

Question 38

What command allows you to view the contents of a file?

Answer 38

cat

Question 39

What does the 'more' command do?

Answer 39

Allows you to view files one page at a time.

Question 40

What is the purpose of redirection in Linux?

Answer 40

To send the output of a command to a file instead of the screen.

Question 41

What does the pipe symbol '|' do?

Answer 41

It allows you to take the output from one command and send it to the input of another command.

Question 42

What command counts the number of lines in a file?

Answer 42

wc -l

Question 43

What is the function of the 'touch' command?

Answer 43

Creates an empty file or updates the date and time of an existing file.

Question 44

What command displays a snapshot of process information?

Answer 44

ps

Question 45

What does the 'top' command do?

Answer 45

Displays process information in real time.

Question 46

What command is used to release or renew DHCP addresses?

Answer 46

dhclient

Question 47

What is the purpose of the 'apt' or 'yum' commands?

Answer 47

Used to interact with the package manager for software installation and updates.

Question 48

What is a symbolic link?

Answer 48

A link that points to another file or directory

Question 49

What does the 'head' command do?

Answer 49

Displays the first few lines of a file.

Question 50

What does the 'tail' command do?

Answer 50

Displays the last few lines of a file.

Question 51

What is the maximum length of a filename in Linux?

Answer 51

Filenames can be up to 256 characters long.