[Solved] You want to run a script on multiple Linux servers using SSH remoting in PowerShell 7+. Which approach correctly creates sessions and runs the script block on all servers efficiently? | PowerShell

PowerShell - Remote Management

You want to run a script on multiple Linux servers using SSH remoting in PowerShell 7+. Which approach correctly creates sessions and runs the script block on all servers efficiently?

A$servers = @('server1','server2'); $sessions = $servers | ForEach-Object { New-PSSession -HostName $_ -UserName admin }; Invoke-Command -Session $sessions -ScriptBlock { uptime }

B$servers = @('server1','server2'); foreach ($s in $servers) { Invoke-Command -HostName $s -UserName admin -ScriptBlock { uptime } }

C$sessions = New-PSSession -HostName 'server1','server2' -UserName admin; Invoke-Command -Session $sessions -ScriptBlock { uptime }

DInvoke-Command -ComputerName 'server1','server2' -Credential admin -ScriptBlock { uptime }

Step-by-Step Solution

Solution:

Step 1: Understand session creation for multiple SSH hosts
Creating sessions individually with New-PSSession for each host and collecting them in an array is correct.
Step 2: Use Invoke-Command with session array
Invoke-Command accepts multiple sessions and runs the script block on all efficiently.
Step 3: Eliminate incorrect options
$servers = @('server1','server2'); foreach ($s in $servers) { Invoke-Command -HostName $s -UserName admin -ScriptBlock { uptime } } runs commands sequentially, C uses invalid array for -HostName, D uses -ComputerName which is for WinRM.
Final Answer:
$servers = @('server1','server2'); $sessions = $servers | ForEach-Object { New-PSSession -HostName $_ -UserName admin }; Invoke-Command -Session $sessions -ScriptBlock { uptime } -> Option A
Quick Check:
Use session array with Invoke-Command for multiple SSH hosts [OK]

Quick Trick: Create sessions per host, then invoke command on all sessions [OK]

Common Mistakes:

Using -ComputerName instead of -HostName for SSH
Passing array directly to -HostName parameter
Running commands sequentially instead of in parallel

Master "Remote Management" in PowerShell

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More PowerShell Quizzes

You want to run a script on multiple Linux servers using SSH remoting in PowerShell 7+. Which approach correctly creates sessions and runs the script block on all servers efficiently?

Step 1: Understand session creation for multiple SSH hosts

Step 2: Use Invoke-Command with session array

Step 3: Eliminate incorrect options

Final Answer:

Quick Check:

Want More Practice?