You are customizing search results in a SharePoint Server 2013 server farm.
You need to create a webpage that users can use to search Knowledge Base articles stored in an external
Microsoft SQL Server database. Searches performed from the new page must not display content from other
sources.
What should you do?

A.
Create a page by using the (Welcome Page) Search results page layout. Configure a content type hub.

B.
Create a page by using the (Welcome Page) Search box page layout. Configure a content type hub.

C.
Create a page by using the (Welcome Page) Search box page layout. Create a result source that has a
query transformation.

D.
Create a page by using the (Welcome Page) Search results page layout. Create a result source that has a
query transformation.

Explanation:
Query transforms in a Web Part are most often used to specify the result source that the queries should be
sent to. For example, if you want to create a search experience that is customized for searching for pictures
only, you would first create a result source with a query transform that returns only pictures. Then, you would
create a Web Part that has a query transform that changes any query run in that Web Part to use your new
Pictures result source instead of the default one.
You can configure query transforms in three places:
In a Web Part
In a query rule
In the result source
Plan to transform queries and order results in SharePoint 2013
All: Answer A