Linux Exam (54Q) questions with 100%
correct answers
1) You need to search for man pages that relate to the Postfix service. Which command will do
this - correct answer ✔✔man -k postfix, apropos postfix
2) With **asymmetric encryption**, the public key is sent to the recipient and the information
that is encrypted with the public key can only be decrypted with the private key - correct
answer ✔✔True
3) Which of the following commands would you use to add a default gateway router address of
10.10.4.254 to your route table - correct answer ✔✔route add default gw 10.10.4.254
4) If we wanted to learn about all the available options for the cd command, how might we
display its manual page - correct answer ✔✔man cd
5) Which directory contains filesystem management utilities such as cp or mv - correct answer
✔✔/bin and /usr/bin
6) We need to create a symbolic link in your home directory that links the manual file to the
/usr/share/doc/manual directory. Which command would we do to achieve this - correct
answer ✔✔ln -s /usr/share/doc/manual ~/manual
Explanation
The -s option creates a symbolic link with the ln command.
7) **** While working in the **command line console (not running X Windows)**, you
suddenly need access to another shell to do another task. You don't want to quit or halt the
, current application. What might you do to run both your other function in a shell while still
running your current application - correct answer ✔✔You can press ALT-F2 or CTRL-ALT-F2 to
open an alternate console screen and access a new shell session.
Explanation
Pressing ALT-F2 or CTRL-ALT-F2 will open an alternate console. You can use this console to
perform other tasks without stopping the program running in the first console screen. You can
switch back by pressing ALT-F1 or CTRL-ALT-F1.
8) What command will print a list of all running processes on our system - correct answer
✔✔top, ps
9) What commands will tell us what our IP address is on our Linux system - correct answer
✔✔ifconfig, ip addr
Explanation
The ifconfig utility can be used to both view our current IP address and network-related settings,
as well as modify them. On newer Red Hat-based distributions you can also use the command ip
addr to view the set IP address.
10) Which section of a man page contains administrative utilities used by the root user - correct
answer ✔✔8
11) You are in charge of installing a new Linux server. This Linux server will be used to host a
high load production database application that will be used by a large number of users. Which
might be the best Linux distribution to choose for this mission critical application server, with
consideration for out-of-box configuration - correct answer ✔✔Red Hat Enterprise Linux, SUSE
Linux Enterprise Server
Explanation
correct answers
1) You need to search for man pages that relate to the Postfix service. Which command will do
this - correct answer ✔✔man -k postfix, apropos postfix
2) With **asymmetric encryption**, the public key is sent to the recipient and the information
that is encrypted with the public key can only be decrypted with the private key - correct
answer ✔✔True
3) Which of the following commands would you use to add a default gateway router address of
10.10.4.254 to your route table - correct answer ✔✔route add default gw 10.10.4.254
4) If we wanted to learn about all the available options for the cd command, how might we
display its manual page - correct answer ✔✔man cd
5) Which directory contains filesystem management utilities such as cp or mv - correct answer
✔✔/bin and /usr/bin
6) We need to create a symbolic link in your home directory that links the manual file to the
/usr/share/doc/manual directory. Which command would we do to achieve this - correct
answer ✔✔ln -s /usr/share/doc/manual ~/manual
Explanation
The -s option creates a symbolic link with the ln command.
7) **** While working in the **command line console (not running X Windows)**, you
suddenly need access to another shell to do another task. You don't want to quit or halt the
, current application. What might you do to run both your other function in a shell while still
running your current application - correct answer ✔✔You can press ALT-F2 or CTRL-ALT-F2 to
open an alternate console screen and access a new shell session.
Explanation
Pressing ALT-F2 or CTRL-ALT-F2 will open an alternate console. You can use this console to
perform other tasks without stopping the program running in the first console screen. You can
switch back by pressing ALT-F1 or CTRL-ALT-F1.
8) What command will print a list of all running processes on our system - correct answer
✔✔top, ps
9) What commands will tell us what our IP address is on our Linux system - correct answer
✔✔ifconfig, ip addr
Explanation
The ifconfig utility can be used to both view our current IP address and network-related settings,
as well as modify them. On newer Red Hat-based distributions you can also use the command ip
addr to view the set IP address.
10) Which section of a man page contains administrative utilities used by the root user - correct
answer ✔✔8
11) You are in charge of installing a new Linux server. This Linux server will be used to host a
high load production database application that will be used by a large number of users. Which
might be the best Linux distribution to choose for this mission critical application server, with
consideration for out-of-box configuration - correct answer ✔✔Red Hat Enterprise Linux, SUSE
Linux Enterprise Server
Explanation
