Parameter attributes (Mandatory, ValidateSet) in PowerShell - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to make the parameter mandatory.

PowerShell

param(
    [[1](Mandatory=$true)]
    [string]$Name
)

Drag options to blanks, or click blank then click option'

AParameter

BOptional

CValidateSet

DMandatory

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Mandatory' instead of 'Parameter' will cause a syntax error.

Using 'ValidateSet' here is incorrect because it restricts values, not requirement.

The Parameter attribute with Mandatory=$true makes a parameter required when running the script or function.

2fill in blank

medium

Complete the code to restrict the parameter to specific values.

PowerShell

param(
    [ValidateSet([1])]
    [string]$Color
)

Drag options to blanks, or click blank then click option'

A'Circle', 'Square', 'Triangle'

B'Red', 'Yellow', 'Pink'

C'Red', 'Green', 'Blue'

D'Apple', 'Banana', 'Cherry'

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing unrelated sets like shapes or fruits will cause validation errors.

Leaving the set empty will not restrict values.

The ValidateSet attribute restricts the parameter to the specified values. Here, only 'Red', 'Green', or 'Blue' are allowed.

3fill in blank

hard

Fix the error in the parameter attribute to make the parameter mandatory with a ValidateSet.

PowerShell

param(
    [[1](Mandatory=$true)]
    [ValidateSet('Small', 'Medium', 'Large')]
    [string]$Size
)

Drag options to blanks, or click blank then click option'

AValidateSet

BMandatory

CValidateRange

DParameter

Attempts:

3 left

💡 Hint

Common Mistakes

Using Mandatory attribute alone does not accept parameters like Mandatory=$true.

Putting Mandatory=$true inside ValidateSet causes syntax errors.

The Parameter attribute is used to set properties like Mandatory=$true. It must be combined with ValidateSet separately.

4fill in blank

hard

Fill both blanks to create a mandatory parameter that only accepts 'Yes' or 'No'.

PowerShell

param(
    [[1](Mandatory=$true)]
    [[2]('Yes', 'No')]
    [string]$Confirm
)

Drag options to blanks, or click blank then click option'

AParameter

BMandatory

CValidateSet

DValidateRange

Attempts:

3 left

💡 Hint

Common Mistakes

Using Mandatory attribute alone without Parameter causes errors.

Using ValidateRange instead of ValidateSet will not restrict to specific strings.

Use Parameter with Mandatory=$true to require the parameter, and ValidateSet to restrict values to 'Yes' or 'No'.

5fill in blank

hard

Fill all three blanks to define a mandatory parameter named 'Mode' that accepts only 'Auto', 'Manual', or 'Off'.

PowerShell

param(
    [[1](Mandatory=[2])]
    [[3]('Auto', 'Manual', 'Off')]
    [string]$Mode
)

Drag options to blanks, or click blank then click option'

AParameter

B$true

CValidateSet

DMandatory

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Mandatory' as an attribute alone is incorrect syntax.

Using '$false' instead of '$true' will make the parameter optional.

Using ValidateRange instead of ValidateSet will not restrict to specific strings.

The Parameter attribute with Mandatory=$true makes the parameter required. The ValidateSet attribute restricts the allowed values.