Question 1

Which utility can be used to remove sections or columns of each line of input?
A) sort
B) cut
C) paste
D) diff
E) grep

Accepted Answer

The cut utility is specifically designed to remove sections or columns of each line of input.

Question 2

Ubuntu is a popular distribution from which core tree?
A) Fedora
B) Linux
C) Debian
D) Slackware

Accepted Answer

B

Question 3

In shell scripting, what are backticks, or backwards single quote marks, used for?
A) Shell escapes
B) Variable dereference
C) Command substitution
D) Output formatting

Accepted Answer

B

Question 4

an SSH private key should never be shared with other users or host systems.

Accepted Answer

Sharing an SSH private key with other users or host systems compromises the security of the system and can lead to unauthorized access or data theft. The private key should be kept confidential and only used by the user to authenticate with remote systems.

Question 5

What must you do to get a complete report from the lsof command?
A) Run it at boot time
B) Make it part of systemd
C) Run it as root
D) Run it as a regular user

Accepted Answer

Running lsof as root will provide a complete report, as it requires root privileges to list all open files on the system. Running it as a regular user will only show open files for that specific user, not system-wide. Running it at boot time or making it part of systemd may not necessarily provide a complete report since open files can change throughout the system's runtime.

Question 6

On older Fedora Core systems, which dependency manager is used?
A) apt
B) deb
C) rpm
D) yum
E) dnf

Accepted Answer

The answer of On older Fedora Core systems, which dependency...

Question 7

Which of these characters is not valid for filenames?
A) *
B) !
C) /
D) &
E) <space>

Accepted Answer

The forward slash (/) is reserved as a delimiter in file paths and is not a valid character in filenames on most operating systems.

Question 8

Which utility can be used to merge sequentially corresponding lines of input streams into a single output stream?
A) sort
B) cut
C) paste
D) diff
E) grep

Accepted Answer

The utility "paste" can be used to merge sequentially corresponding lines of input streams into a single output stream. It takes each line of the input files and combines them together separated by a delimiter (by default, a tab character).

Question 9

Which utility can be used to place a stream of input in order numerically or alphabetically?
A) sort
B) cut
C) paste
D) diff
E) grep

Accepted Answer

The utility "sort" can be used to place a stream of input in order numerically or alphabetically. It can sort data in ascending or descending order based on the specified criteria.

Question 10

On Arista switches, what object format is used for automation and scripting?
A) JSON
B) Java
C) Plain text files
D) Stream editing

Accepted Answer

Arista switches use JSON object format for automation and scripting.

Question 11

Why is it recommended for root's homedir to be in a separate location from other users' homedirs?
A) Because root doesn't want to hang out with pesky users
B) Because users are annoying
C) Because root's homedir permissions prevent user access
D) Because user homedirs are sometimes a separate filesystem that may not be mounted in single user mode

Accepted Answer

Root's home directory permissions are typically set to prevent access by other users for security reasons, ensuring that sensitive system files and configurations are protected.

Question 12

Which loop type is the recommended way to iterate over a set of filenames?
A) a case loop
B) a for loop
C) a while loop
D) an until loop

Accepted Answer

A for loop is the recommended way to iterate over a set of filenames because it is designed to loop through a specific range or set of values, making it ideal for iterating over a list of filenames.

Question 13

What are two primary variants of UNIX?
A) AT&T and Bell Labs
B) Sun and DEC
C) BSD and System V
D) Debian and Fedora

Accepted Answer

BSD (Berkeley Software Distribution) and System V (System Five) are two primary variants of UNIX. AT&T and Bell Labs were the original creators of UNIX, but they are not variants. Sun and DEC are companies that produced their own UNIX-based operating systems, but they are not primary variants. Debian and Fedora are distributions of the Linux operating system, which is UNIX-like but not a primary variant of UNIX.

Question 14

Where will the find command look to locate files?
A) The system binary directories
B) Your $PATH
C) Recursively starting in the directory you specify in the command options
D) Recursively starting at/

Accepted Answer

The find command will look recursively starting in the directory you specify in the command options.

Question 15

What tool is awk based on?
A) ed
B) grep
C) sed
D) emacs

Accepted Answer

The answer of What tool is awk based on?
A) ed
B)...

Question 16

The sed utility's name is short for what?
A) stdout editor
B) stream editor
C) simple editor
D) string editor

Accepted Answer

The name "sed" is short for "stream editor". It is a powerful command-line utility for manipulating text files, and it works by reading input files line by line and making specified text substitutions or other modifications.

Question 17

Where did the GECOS field in /etc/passwd come from?
A) Bell Labs DHCP lease tracking
B) Payroll name and address info
C) Bell Labs Print Service
D) Parking space assignments at AT&T

Accepted Answer

The GECOS field in /etc/passwd came from the Bell Labs Print Service. It was originally used to store the user's full name, address, and phone number for printing purposes.

Question 18

To kill all of the jobs you have access to kill, use which command?
A) kill -1 1
B) kill 1
C) kill -9 1
D) kill -9 -1

Accepted Answer

The answer of To kill all of the jobs you...

Question 19

What is the awk tool designed to be?
A) a calculator
B) a pattern matching programming language
C) a non-interactive editing tool
D) an operating system

Accepted Answer

Awk is designed to be a pattern matching programming language for processing and manipulating text files in UNIX and Linux environments. It can search, edit, and extract data from text files based on predefined patterns and rules.

Question 20

What character is used as shorthand for your homedir?
A) $
B) #
C) .
D) ~

Accepted Answer

The tilde (~) character is used as shorthand for the user's home directory in many command line environments.

Exam 2: Arista Linux Essentials Exam

Which utility can be used to remove sections or columns of each line of input?

Ubuntu is a popular distribution from which core tree?

In shell scripting, what are backticks, or backwards single quote marks, used for?

an SSH private key should never be shared with other users or host systems.

What must you do to get a complete report from the lsof command?

On older Fedora Core systems, which dependency manager is used?

Which of these characters is not valid for filenames?

Which utility can be used to merge sequentially corresponding lines of input streams into a single output stream?

Which utility can be used to place a stream of input in order numerically or alphabetically?

On Arista switches, what object format is used for automation and scripting?

Why is it recommended for root's homedir to be in a separate location from other users' homedirs?

Which loop type is the recommended way to iterate over a set of filenames?

What are two primary variants of UNIX?

Where will the find command look to locate files?

What tool is awk based on?

The sed utility's name is short for what?

Where did the GECOS field in /etc/passwd come from?

To kill all of the jobs you have access to kill, use which command?

What is the awk tool designed to be?

What character is used as shorthand for your homedir?