This type of question is asked in PowerShell scenario-based interview questions and very well-known questions in Interviews. Please keep an eye on these types.  To work with Windows Communication Foundation (WCF) in PowerShell, you can use the New-WebServiceProxy cmdlet to create a proxy for a WCF service and the Invoke-WebRequest cmdlet to send HTTP requests to the service.  The New-WebServiceProxy cmdlet creates a .NET object that represents a proxy for a WCF service, allowing you to call the service's methods as if they were local methods. To use New-WebServiceProxy, you need to specify the URL of the WCF service's .svc file. For example:  $proxy = New-WebServiceProxy -Uri "http://localhost/MyService.svc"  The Invoke-WebRequest cmdlet sends an HTTP request to a specified URL and returns the response. You can use Invoke-WebRequest to send a variety of HTTP requests, including GET, POST, and PUT. For example, to send a GET request to a WCF service, you can use the following command:  Invoke-WebRequest -Uri "http://localhost/MyService.svc/GetData"  To work with Windows Workflow Foundation (WF) in PowerShell, you can use the New-WFWorkflow cmdlet to create a new workflow, and the Start-WFWorkflow cmdlet to start a workflow.  The New-WFWorkflow cmdlet creates a new workflow definition object that represents a workflow. To use New-WFWorkflow, you need to specify the path to a workflow definition file or the workflow definition itself. For example:  $workflow = New-WFWorkflow -DefinitionPath "C:\\Workflows\\MyWorkflow.xaml"  The Start-WFWorkflow cmdlet starts a workflow instance based on a workflow definition. To use Start-WFWorkflow, you need to specify the workflow definition object and any input arguments for the workflow. For example:  Start-WFWorkflow -Workflow $workflow -InputArguments @{"Argument1"="Value1";"Argument2"="Value2"}