You want to create a PowerShell function Get-Square that takes a number and returns its square. Which function definition correctly achieves this?

hard📝 Application Q15 of 15

PowerShell - Functions

You want to create a PowerShell function Get-Square that takes a number and returns its square. Which function definition correctly achieves this?

Afunction Get-Square { param($num) return $num * $num }

Bfunction Get-Square($num) { $num ^ 2 }

Cfunction Get-Square { param($num) $num ** 2 }

Dfunction Get-Square { param($num) return $num ^ 2 }

Step-by-Step Solution

Solution:

Step 1: Understand PowerShell multiplication and function syntax
PowerShell uses * for multiplication; param block defines input parameters.
Step 2: Evaluate each option
function Get-Square { param($num) return $num * $num } correctly uses param and multiplies $num by itself. function Get-Square($num) { $num ^ 2 } uses valid param syntax but ^ is bitwise XOR, not multiplication. function Get-Square { param($num) $num ** 2 } uses ** which is not PowerShell operator. function Get-Square { param($num) return $num ^ 2 } uses ^ which is bitwise XOR, not power.
Final Answer:
function Get-Square { param($num) return $num * $num } -> Option A
Quick Check:
Use * for multiplication, param inside braces [OK]

Quick Trick: Use * for multiplication; param inside braces defines inputs [OK]

Common Mistakes:

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