You have a SharePoint Server 2010 Service Pack 1 (SP1) server farm. You also have a public site that
is hosted on Microsoft SharePoint Online.
You need to recommend a search solution to meet the following requirements:
Provide users with the ability to search the SharePoint Online site and SharePoint on-premises
simultaneously.
Provide search results from SharePoint Online and SharePoint on-premises in a single Web

Part. What should you include in the recommendation?

A.
SharePoint Search Federation

B.
a content source

C.
search scopes

D.
a crawl rule

Explanation:
Search is one area which has some integration capabilities. Thought the integration is not ideal, as
we can’t share the relevance of the search results between the two environments. But what we can
do is to have either two search boxes, one for on-premise content and one for the online content, or
use federated search. With federated search you can do one search query, but get two separated
results from two difference content sources showing up in two separate result sets. Below is a
screenshot of search results from SharePoint and search results from Bing.