You want to create a script parameter $Port that only accepts integers between 1024 and 65535 and cannot be empty. Which parameter validation attributes should you use together?

hard📝 Application Q15 of 15

PowerShell - Scripting Best Practices

You want to create a script parameter $Port that only accepts integers between 1024 and 65535 and cannot be empty. Which parameter validation attributes should you use together?

A[ValidateRange(1024,65535)][ValidateNotNullOrEmpty()]

B[ValidateSet(1024,65535)][ValidateNotNullOrEmpty()]

C[ValidatePattern('^[0-9]{4,5}$')]

D[ValidateNotNullOrEmpty()][ValidateLength(4,5)]

Step-by-Step Solution

Solution:

Step 1: Choose attribute for numeric range
[ValidateRange(1024,65535)] ensures the integer is within the port number range.
Step 2: Ensure parameter is not empty
[ValidateNotNullOrEmpty()] prevents null or empty input.
Step 3: Combine both for full validation
Using both attributes together enforces the correct range and non-empty input.
Final Answer:
[ValidateRange(1024,65535)][ValidateNotNullOrEmpty()] -> Option A
Quick Check:
Range + NotNullOrEmpty = correct port validation [OK]

Quick Trick: Combine ValidateRange and ValidateNotNullOrEmpty for numeric required input [OK]

Common Mistakes:

Using ValidateSet for numeric ranges
Relying on ValidatePattern for numeric range checks
Missing non-empty validation

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You want to create a script parameter $Port that only accepts integers between 1024 and 65535 and cannot be empty. Which parameter validation attributes should you use together?

Step 1: Choose attribute for numeric range

Step 2: Ensure parameter is not empty

Step 3: Combine both for full validation

Final Answer:

Quick Check:

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