Boolean values in PowerShell - Cheat Sheet & Quick Revision

Recall & Review

beginner

What are Boolean values in PowerShell?

Boolean values represent two states: True or False. They are used to control logic and decisions in scripts.

beginner

How do you assign a Boolean value to a variable in PowerShell?

You assign it like this: $isReady = $true or $isDone = $false. Use $true and $false keywords.

beginner

What will this PowerShell code output?<br>

$a = $true<br>if ($a) { 'Yes' } else { 'No' }

It will output Yes because the variable $a is $true, so the if condition passes.

beginner

Can Boolean values be used directly in conditions in PowerShell? Explain.

Yes, Boolean values like $true or $false can be used directly in if or while conditions to control flow.

intermediate

What is the difference between $true and 1 in PowerShell?

$true is a Boolean value representing true. 1 is a number. PowerShell treats $true as 1 in numeric context but they are different types.

Which keyword represents a true Boolean value in PowerShell?

A TRUE

B True

C $true

D 1

PowerShell uses the keyword $true (case-insensitive) to represent the Boolean true value.

What will this code output?<br>

$flag = $false<br>if (-not $flag) { 'No' } else { 'Yes' }

A No

B Nothing

C Error

D Yes

The -not operator negates $false to $true, so the if block runs and outputs 'No'.

Which of these is NOT a valid Boolean value in PowerShell?

A $true

B $false

C $True

D True

True without the $ is not a valid Boolean value in PowerShell.

How do you check if a variable $x is true in PowerShell?

A if ($x -eq $true)

B Both A and C

C if ($x)

D if ($x == true)

Both if ($x -eq $true) and if ($x) correctly check if $x is true.

What type of value is $true in PowerShell?

A Boolean

B Integer

C String

D Null

$true is a Boolean type representing the logical true value.

Explain how Boolean values control the flow of a PowerShell script.

Think about how scripts decide what to do next.

Describe how to assign and use Boolean variables in PowerShell with an example.

Show a simple script snippet.