# Exercise: What a File Knows

Exercise: What a File Knows: Exercise: What a File Knows.

Updated: November 10, 2026

1. [Exercise: What a File Knows](https://www.ask-codey.com/lessons/exercise-powershell-what-a-file-knows) (Apprentice): Answer a friend's questions about their trip photos by asking the objects themselves, with Get-Member, properties, methods and Select-Object, save a plain list and a table of sizes, and let a Pester check tell you what's done.

Source: https://www.ask-codey.com/courses/powershell-in-depth/topics/exercise-powershell-what-a-file-knows