You plan to deploy a SharePoint Server 2013 server farm.
The farm will have two front-end Web servers that are configured as shown in the following table.

You need to ensure that pages are rendered by using the front-end Web server that has the smallest health threshold value.
Which service should you use?
Correct Answer: A
Explanation/Reference:
Request Manager is functionality in SharePoint Server 2013 that enables administrators to manage incoming requests and determine how SharePoint Server 2013 routes these requests.
Note: Request routing and prioritizing can be divided into two parts: request-rule matching and front-end web server filtering. Request-rule matching happens exactly like in request routing. Front-end web server filtering uses the health threshold parameter from the throttling rules in combination with front-end web server health data to determine whether the front-end web servers in the selected routing pool can process the given request.