Microsoft Exam Questions

What are two possible recommendations?

Your company has a main office and three branch offices.
You have an Exchange Server 2013 organization. The main office contains five Exchange servers.
Each branch office contains two Exchange servers. All of the servers have all of the Exchange server
roles installed. Each branch office contains one database availability group (DAG).
You need to recommend a load balancing solution for the branch offices. The solution must ensure
that both servers in each office are the targets of all client connections.
What are two possible recommendations? Each correct answer presents a complete solution.

A.
DNS round robin

B.
Layer 4 hardware load balancers

C.
CAS arrays

D.
Network Load Balancing (NLB) clusters