PowerShell Gallery - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of listing installed modules?

You run the command Get-InstalledModule in PowerShell. What output do you expect if you have the module 'Pester' version 5.3.1 installed?

PowerShell

Get-InstalledModule

A

Name Version
---- -------
Pester 5.3.1

B Pester 5.3.1

C No output unless you specify -AllVersions

D

Name Version Repository
---- ------- ----------
Pester 5.3.1 PSGallery

💡 Hint

Think about the default properties shown by Get-InstalledModule.

Get-InstalledModule shows the module name, version, and repository by default in a table format.

💻 Command Output

intermediate

What happens when you install a module twice?

You run Install-Module -Name Pester -Force twice in a row. What is the expected output or behavior?

PowerShell

Install-Module -Name Pester -Force
Install-Module -Name Pester -Force

A An error occurs on the second command saying module already installed.

B The module is installed once, second command overwrites without error.

C Both commands install separate copies of the module side by side.

D The second command prompts to confirm overwriting the module.

💡 Hint

The -Force parameter forces reinstallation without prompts or errors.

Using -Force with Install-Module reinstalls or overwrites the module without error or prompt.

🚀 Application

advanced

How to find the latest version of a module in PowerShell Gallery?

You want to find the latest available version of the module 'Pester' from the PowerShell Gallery without installing it. Which command will give you this information?

A Find-Module -Name Pester | Select-Object -Property Name, Version

B Get-InstalledModule -Name Pester | Select-Object -Property Name, Version

C Install-Module -Name Pester -WhatIf

D Save-Module -Name Pester -Path .

💡 Hint

Find-Module searches the gallery without installing.

Find-Module queries the PowerShell Gallery for module info including the latest version without installing it.

🔧 Debug

advanced

Why does this Install-Module command fail with 'Access Denied'?

You run Install-Module -Name Pester in PowerShell and get an 'Access Denied' error. What is the most likely cause?

A The module name 'Pester' is misspelled.

B PowerShell Gallery is offline or unreachable.

C You are running PowerShell without administrator rights and trying to install to a system-wide location.

D You have already installed the module.

💡 Hint

Installing modules system-wide requires admin rights.

By default, Install-Module installs modules to a system-wide folder requiring admin rights. Without admin rights, it fails with access denied.

🧠 Conceptual

expert

What is the purpose of the PowerShell Gallery repository?

Which statement best describes the PowerShell Gallery repository?

A It is an online repository where PowerShell modules and scripts are published and shared for easy discovery and installation.

B It is a local folder on your computer where PowerShell stores installed modules.

C It is a command-line tool to create PowerShell modules.

D It is a security feature that blocks untrusted scripts from running.

💡 Hint

Think about where you get modules from when you use Install-Module.

PowerShell Gallery is an official online repository hosting modules and scripts for sharing and easy installation.