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  5. Arista Linux Essentials Exam Questions and Answers

ACE-P-ALE1.04 Sample Questions Answers

Questions 4

What does the ctime of a file indicate?

Options:

A.

Creation time

B.

Change time

C.

Content time

D.

Character time

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Questions 5

Which of the following filesystems are you most likely to see on a Linux system?

Options:

A.

XFS

B.

ext2fs

C.

NTFS

D.

exFAT

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Questions 6

What tool is awk based on?

Options:

A.

ed

B.

grep

C.

sed

D.

emacs

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Questions 7

What editor is vi based on?

Options:

A.

ed

B.

EMACS

C.

pico

D.

sed

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Questions 8

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

Options:

A.

Shell escapes

B.

Variable dereference

C.

Command substitution

D.

Output formatting

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Questions 9

In file globbing, which symbol matches any single character?

Options:

A.

*

B.

?

C.

[]

D.

.

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Questions 10

Which of these shells are POSIX compliant?

Options:

A.

bash

B.

ksh

C.

csh

D.

zsh

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Questions 11

Why is iostat not needed on an Arista switch?

Options:

A.

The CPU can’t see the front panel interfaces to report on traffic

B.

EOS is installed on an in-memory filesystem that does not use a hard disk

C.

The memory is always full on an Arista switch

D.

The I/O on an Arista switch is too fast for the CPU

E.

Arista switches don’t support hyperthreading

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Questions 12

What was the first widely adopted commercial UNIX?

Options:

A.

AT&T System V

B.

Berkeley Software Distribution

C.

Linux

D.

Sun Solaris

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Questions 13

In regular expressions, to what does greedy vs. lazy refer?

Options:

A.

How many lines in a file the pattern will match

B.

How many times the pattern will match on a line

C.

How strict the pattern is required to be

D.

Whether the pattern quantifiers will stop at whitespace

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Questions 14

The cd into a directory, you need what kind of permission?

Options:

A.

read

B.

write

C.

execute

D.

setuid

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Questions 15

The three classes in the file mode are

Options:

A.

owner/group/world

B.

read/write/execute

C.

user/group/other

D.

setuid/setgid and sticky

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Questions 16

Which of the following is true when using the mv command to move a file to a new location on the same filesystem?

Options:

A.

It is not recommended because the filesystem could be corrupted

B.

It is slow because the data has to be read and written

C.

It is not recommended, and the cp command should be used instead

D.

It is very fast because only the directory entry needs updating

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Questions 17

The fstab file contains what information?

Options:

A.

The runlevel of the system

B.

Currently mounted filesystems

C.

Filesystems to mount at boot

D.

NFS file systems mounted by users

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Questions 18

What is the two-character sequence at the top of scripts, which tells the kernel what interpreter to use, called?

Options:

A.

Scripthash

B.

Bangscript

C.

Hashscript

D.

Shebang

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Questions 19

In a bash script, which of the following is the most common way to send output to the screen?

Options:

A.

echo

B.

write

C.

send

D.

print

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Questions 20

What term is used for the beginning of time for UNIX?

Options:

A.

Epoch

B.

Zero-hour

C.

Birth

D.

Dawn

E.

Awakening

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Questions 21

Which of these items runs in user space?

Options:

A.

System daemons

B.

The IPC system

C.

The process scheduler

D.

Libraries and APIs

E.

The C Standard Library

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Questions 22

The sed utility’s name is short for what?

Options:

A.

stdout editor

B.

stream editor

C.

simple editor

D.

string editor

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Questions 23

What character is used as shorthand for your homedir?

Options:

A.

$

B.

#

C.

.

D.

~

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Questions 24

Which of the following performance information is considered the most important information provided by the vmstat command?

Options:

A.

it reports total memory on the system

B.

it reports buffer activity

C.

it reports disk I/O

D.

it reports memory swapping

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Questions 25

Which of these statements is true about user groups on Linux?

Options:

A.

A user may be a member of more than one group

B.

A group may have more than one-member user

C.

Groups may not be nested

D.

Groups may be nested

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Questions 26

The ps aux command is from which UNIX variant?

Options:

A.

AIX

B.

System V

C.

Linux

D.

BSD

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Questions 27

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

Options:

A.

TRUE

B.

FALSE

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Questions 28

Which special device provides an endless stream of null output?

Options:

A.

/dev/null

B.

/dev/zero

C.

/dev/urandom

D.

/dev/blank

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Questions 29

Given the following directory structure, which commands would successfully remove the fubar directory?

Options:

A.

rm –r fubar

B.

rmdir –p fubar

C.

rmdir –p fubar/bar

D.

rm fubar/bar

E.

rm fubar

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Exam Code: ACE-P-ALE1.04
Exam Name: Arista Linux Essentials Exam
Last Update: Nov 29, 2024
Questions: 99
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