How would you correctly define a mandatory parameter named Environment that only accepts the values 'Dev', 'Test', or 'Prod' in a PowerShell function?

easy📝 Syntax Q3 of 15

PowerShell - Functions

How would you correctly define a mandatory parameter named Environment that only accepts the values 'Dev', 'Test', or 'Prod' in a PowerShell function?

A[Parameter(Mandatory=$true)] [ValidateRange('Dev','Test','Prod')] [string]$Environment

B[Parameter()] [ValidateSet('Dev','Test','Prod')] [string]$Environment

C[Parameter(Mandatory=$false)] [ValidateSet('Dev','Test','Prod')] [int]$Environment

D[Parameter(Mandatory=$true)] [ValidateSet('Dev','Test','Prod')] [string]$Environment

Step-by-Step Solution

Solution:

Step 1: Use Mandatory attribute
Set Mandatory=$true to require the parameter.
Step 2: Use ValidateSet for allowed values
[ValidateSet('Dev','Test','Prod')] restricts input to these strings.
Step 3: Correct data type
Use [string] since values are strings.
Final Answer:
[Parameter(Mandatory=$true)] [ValidateSet('Dev','Test','Prod')] [string]$Environment -> Option D
Quick Check:
Mandatory + ValidateSet with correct type [OK]

Quick Trick: Mandatory with ValidateSet restricts input values [OK]

Common Mistakes:

Omitting Mandatory attribute
Using ValidateRange instead of ValidateSet
Incorrect data type for string values

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How would you correctly define a mandatory parameter named Environment that only accepts the values 'Dev', 'Test', or 'Prod' in a PowerShell function?

Step 1: Use Mandatory attribute

Step 2: Use ValidateSet for allowed values

Step 3: Correct data type

Final Answer:

Quick Check:

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