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?

A.
Request Management

B.
Distributed Cache

C.
Microsoft SharePoint Foundation Subscription Settings Service

D.
Work Management Service

Explanation:
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 frontend 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 frontend web server health data to determine whether the front-end web servers in the selected routing
pool can process the given request.