To execute PowerShell commands on a remote computer (Computer2) from another computer (Computer1) using Invoke-Command, PowerShell Remoting must first be enabled on the target computer. The Enable-PSRemoting cmdlet configures the target computer to receive remote management requests. It performs several crucial actions: it starts the Windows Remote Management (WinRM) service, sets its startup type to automatic, creates a listener to accept requests, and enables the necessary firewall rule for WS-Management communications. This is the foundational step required before any remote PowerShell session can be initiated.

B. Adding a computer account to the Remote Management Users group is incorrect; this group is for user accounts. Furthermore, permissions are irrelevant if the remoting service is not enabled first.
C. Delegation is a security setting for "double-hop" scenarios, where a command on a remote computer needs to access a third resource. This is not required for a direct command execution.
D. The New-PSSession cmdlet is run on the source computer (Computer1) to establish a connection, but it will fail if the target (Computer2) is not configured to accept remote connections.

1. Microsoft PowerShell Documentation

aboutRemoteRequirements: Under the section "How to Configure Your Computer for Remoting

" the document states

"To enable PowerShell remoting

use the Enable-PSRemoting cmdlet. This cmdlet configures the computer to receive PowerShell remote commands."

Source: Microsoft

"aboutRemoteRequirements

" PowerShell Documentation. Accessed from https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/aboutremoterequirements.

2. Microsoft PowerShell Documentation

Enable-PSRemoting: The cmdlet's description details its function: "The Enable-PSRemoting cmdlet configures the computer to receive PowerShell remote commands that are sent by using the WS-Management technology." It lists the specific actions it performs

which are the prerequisites for Invoke-Command to succeed.

Source: Microsoft

"Enable-PSRemoting

" PowerShell Documentation. Accessed from https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/enable-psremoting.

3. Microsoft PowerShell Documentation

aboutRemoteTroubleshooting: In the troubleshooting guide for remoting

a common error

"The client cannot connect to the destination specified in the request

" is often caused because "PowerShell remoting might not be enabled on the remote computer." The primary solution provided is to run Enable-PSRemoting on the remote computer.

Source: Microsoft

"aboutRemoteTroubleshooting

" PowerShell Documentation. Accessed from https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/aboutremotetroubleshooting.