Question 1

Which of the following has greater market share of Linux SW / HW
A)Linux on z10
B)Linux HP integrity server
C)Linux on AS / 400 servers locate
D)Linux on DELL Xeon

Accepted Answer

A

Question 2

Which of the following is the BEST way to set up SSH(Secure Shell) for communicating between System without needing passwords?
A)Use ssh-keygen for generating public-private keys.
B)Disable passwords on specific accounts that will use SSH.
C)Both A and B
D)None of the above

Accepted Answer

Using ssh-keygen to generate a public-private key pair is the best practice for setting up SSH for passwordless communication between systems. The public key is placed on the server, and the private key is kept on the client. This allows secure, passwordless authentication. Disabling passwords on accounts (option B) would decrease security and is not a recommended practice for setting up SSH.

Question 3

Which command is used to see the online manual?
A)man
B)manual
C)*man
D)%man

Accepted Answer

The "man" command is used in Unix and Unix-like operating systems to display the user manual of any command that we can run on the terminal.

Question 4

The head command writes the first ____________ lines of a file to screen by default.
A)Five
B)Twenty
C)Ten
D)Fifteen

Accepted Answer

The head command by default writes the first ten lines of a file to the screen.

Question 5

Which command is used to find what is in your home directory?
A)% List
B)% Is
C)% home
D)Either a or c

Accepted Answer

The correct command to list the contents of your home directory (or any directory) in Unix/Linux systems is "ls". The "%" symbol is often used in documentation or examples to represent the command prompt and is not part of the command itself.

Question 6

What is the shortcut to the home directory?
A)shift+cd
B)cd+enter key
C)alt+ctrl+cd
D)ctrl+cd

Accepted Answer

The shortcut to navigate to the home directory in most Unix-like operating systems, including Linux and macOS, is simply typing "cd" and pressing the enter key. This command changes the current directory to the user's home directory.

Question 7

What is used to search files for specified words or patterns?
A)Less
B)Srch
C)%src
D)grep

Accepted Answer

grep is the command used in Unix and Unix-like operating systems to search files for specified patterns or words.

Question 8

Which character is used to match exactly one character?
A)(*)
B)(^)
C)(?)

Accepted Answer

The question mark (?) character is used in regular expressions to match exactly one character.

Question 9

The hierarchy of a series of directories branching in a user system starts from
A)home
B)root
C) / home
D) / root

Accepted Answer

The answer of The hierarchy of a series of directories...

Quiz 4: Linux Commands and Configuration

Which of the following has greater market share of Linux SW / HW

Which of the following is the BEST way to set up SSH(Secure Shell) for communicating between System without needing passwords?

Which command is used to see the online manual?

The head command writes the first ____________ lines of a file to screen by default.

Which command is used to find what is in your home directory?

What is the shortcut to the home directory?

What is used to search files for specified words or patterns?

Which character is used to match exactly one character?

The hierarchy of a series of directories branching in a user system starts from