Arista Linux Essentials Exam (ACE-P-ALE1.04) Practice Test

Questions # 21:

Which answer best describes three important system performance monitoring indicators?

Options:

Load avg, idle CPU and swapping

Uptime, load avg and idle CPU

Load avg, idle CPU and free memory

System CPU, user CPU and load avg

Uptime, system CPU and free memory

Questions # 22:

Which of the following are valid examples of script interpreters?

Options:

/usr/bin/bash

/usr/bin/perl

/usr/bin/python

/usr/bin/Cli

All of them

Questions # 23:

The three classes in the file mode are

Options:

owner/group/world

read/write/execute

user/group/other

setuid/setgid and sticky

Questions # 24:

If the 1-minute load average is greater than 4xCPU cores (in other words, the run queue is very large), what might the system need to improve performance?

Options:

Faster CPUs

More CPUs

More memory

Faster hard drives

Questions # 25:

The ps –ef command is from which UNIX variant?

Options:

AIX

System V

Linux

BSD

Questions # 26:

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

Options:

read

write

execute

setuid

Questions # 27:

What is the MBR?

Options:

Microcomputer Boot Resistor

Master Boot Relocator

Master Boot Record

Megabyte Barometric Recombinator

Questions # 28:

What does grep stand for?

Options:

global regular expression print

global regular expression pattern

glob regex execute pattern

glob regex execute print

Questions # 29:

In bash scripting, which of the following is NOT valid way of evaluating an arithmetic expression?

Options:

$(( ))

${}

$[]

let

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