Linux 2.3

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Linux Knowledge Challenge

Test your understanding of Linux with our comprehensive quiz designed for enthusiasts and professionals alike. Whether you’re preparing for a certification, brushing up on your skills, or seeking to expand your knowledge, this quiz offers a challenging yet engaging experience.

42 thought-provoking questions
Multiple choice and checkbox formats
Improve your Linux expertise

42 Questions10 MinutesCreated by LearningCode123

The iptables software on Linux is an example of what kind of software?

Routing

Anti-virus

Firewall

Proxy

What piece of software tells the operating system how to use a specific hardware device

Graphical user interface

System service

Device driver

User interface

What service provides a method for efficient transfer of files over the internet?

FTP

HTML

SMTP

Telnet

What software type is distrusted free of charge, but the source is not available?

Open source software

Shareware

Closed source software

Freeware

When viewing the version number for a Linux kernel, what number indicates the stability of the kernel?

Major number

Revision number

Minor number

Production kernel number

After logging into a terminal, a user will receive an interface known as which option?

Processor

User interface

Swp memory

Shell

Select the utility below that will start and perform a thorough check of RAM for hardware errors when run

Memcheck68

Memtest86

Fixram

Fsck

Under the root directory in Linux, which directory contains system commands and utilities?

/opt

/var

/boot

/usr

What command can be issued to confirm which directory you are in at a command line prompt?

Dir

Pwd

Whereami

When using the vi text editor, which of the following keys, when in command mode, will change to inset mode and place the cursor at the end of the current line?

If a hard link is created to a file and then the original file is deleted, which of the following is true?

Both the original file and the hard link are removed

An error message will be displayed preventing the deletion of the original file

The original file will be removed while the hard link remains, though the content will not be accessible

The original file will be removed while the hard link remains usable to access the contents of the file

What arugment can be used with the chmod command to add read permission and remove write permission for a group on a file?

U+r+w

G-r+w

G+r-w

O+r-w

Which of the following are valid permissions for a directory where the command chmod 1777 has been used to set the permissions on it?

Drwxrwxrwt

Srwxrwxrwx

Trwxrwxrwx

Drwxrwxrw-

Which of the following commands will delete a directory and all of the files contained within it?

Rm olddir

Rmdir olddir

Rm -rf olddir

Rmdir -rf olddir

Which of the following options will change the ownership of files and directories recursively within a directory?

-r

-R

--recursive

--follow

What command can be used to check different kinds of filesystems on Linux for errors?

Chkdsk

Fs_check

Errorchk

Fsck

Which of the following can be used to mount a filesystem?

A device path such as /dev/sdb2

A filesystem UUID

A filesystem label

A filesystem nickname configured in /etc/mtab

Which of the following commands can be used to display the filesystem and partition UUIDs on a Linux System?

E2label

Blkid

Fatlabel

Showpart

Which of the following commands can be used to scan a filesystem for disk usage, create, check and repair quota files?

Quota

Edquota

Chkquota

Quotacheck

Which of the following commands will display a summarization of quotas for a filesystem?

Quota --list

Repquota

Quotadisplay

Quotaprint

Which of the following is required as a separate partition in order to use LVM?

/var

/boot

/tmp

/home

Which of the following commands will count down from 10 to 1?

Seq 10 1

Seq 10 -1

Seq 10 -1 1

Seq 10 1 -1

Which of the following commands will count the number of lines in a file named data.csv

Lc data.csv

Wc -l data.csv

Lines data.csv

Count -l dat.csv

Which of the following commands will display the contents of the /etc/passwd file in alphanumerical order?

Cat --sort /etc/passwd

Cat -s /etc/passwd

Sed /etc/passwd

Sort /etc/passwd

Which of the following commands will display the exit status of the last command used in the BASH shell

Echo $status

Echo $exit

Echo $?

Echo $!

Which of the following commands will send the output of the cat command to the grep command to be filtered?

Cat /etc/passwd | grep jsmith

Cat /etc/passwd > grep jsmith

Cat /etc/passwd >> grep jsmith

Cat /etc/passwd @ grep jsmith

Which of the following will look t the /etc/passwd file for any lines containing the word root and display them out to the screen while simultaneously writing the results to a file?

Cat /etc/passwd | grep root | merge ~/root.txt

Cat /etc/passwd | grep root >> ~/root.txt

Grep root /etc/passwd | tee ~/root.txt

Grep root /etc/passwd | split ~/root.txt

After a background process has been started, what command below can be used to move it to the foreground?

Fgnd

Fgd

B2f

Which kill signal terminates a process by taking the process information in memory and saving it to a file called core on the hard disk in the current working directory

SIGINT

SIGKILL

SIGQUIT

SIGTERM

Which of the following command can be used to remove a job from the list of pending jobs?

At --remove

Artrm

At -r

At -d

Which of the following commands can be used to see files that are currently being used by a specific process ID (PID)?

Psfiels

Lsof

Pstatus

Pids

While the top command is running, what key can be pressed to change the nice value of a process?

You have started a job running in the background that you want to now bring to the front so that you can watch it execute. Which of the following commands can be used to display the job's output to the terminal?

Dsip

Front

Jobs -f

The system administrator has shut ethernet interface eth0 down while making some changes to the system. Which of the following commands can they use to bring the network connection back up?

Netctl eth0 up

Ifup eth0

Int eth0 up

Interface eth0 --status up

Which of the following commands will display detailed information for network hardware?

Lsnet

Hwdisp --network

Lshw --net

Ethtool

Which of the following commands will show active UDP connections on a Linux system?

Netstat -u

Netstat --udp

Netstat -t udp

Netstat -udp

Linux 2.3

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