You have an Exchange Server 2013 organization that has two sites. The sites use a single namespace.
Each site contains two Exchange servers and a hardware load balancer. Mailboxes are distributed evenly
between the sites.
Your company’s IT policy states that all users must be able to access their mailbox if one site fails.
You implement a DNS round robin solution for the Client Access server infrastructure.
When a site outage occurs, some users report experiencing intermittent slowness when they connect to their
mailbox.
You need to recommend a solution to resolve the issue.
What are two possible recommendations to achieve this goal? Each correct answer presents a complete
solution.

A.
Remove the Virtual IP (VIP) of the failed data center.

B.
Implement geo-dns

C.
Add one additional Client Access server to each site.

D.
Deploy a Windows Failover Cluster in each site.

E.
Lower the TTL of the DNS records.