In PowerShell, what does the expression 1..10 | % {echo $_} do?

• A. It prints numbers 1 through 10 to the console
• B. It pings the addresses 1 through 10
• C. It creates a list of numbers without printing
• D. It stores results in a variable for later use

Answer: (A)

This question tests how PowerShell generates a sequence, processes each item with the pipeline, and prints output. The range 1..10 creates the numbers 1 through 10 as individual objects. The pipeline passes each number to the next stage, where the alias for For-Each-Object executes the script block for every item. Inside the block, $_ represents the current item from the pipeline, and echo outputs it (Write-Output). Since each number is output, you see 1 through 10 printed to the console, one per line. The other interpretations would require different actions (like pinging, silent list creation, or storing to a variable), but this construct explicitly prints the sequence.