You have an Exchange Server 2010 Mailbox server.The server is a member of a database availability group （DAG）.The server fails.You install the operating system on a new server and use the same computer name.You join the server to the domain.You need to reinstall Exchange Server 2010 on the server.The solution must ensure that previous Exchange server configurations are applied to the new server.What should you do？（）

A.Create two SRV records.Assign the SRV record for Server1 a priority of 20.Assign the SRV record Server2 a priority of 10.
B.Create two SRV records.Assign the SRV record for Server1 a priority of 10.Assign the SRV record for Server2 a priority of 20.
C.Create two MX records.Assign the MX record for Server1 a priority of 20.Assign the MX record for Server2 a priority of 10.
D.Create two MX records.Assign the MX record for Server1 a priority of 10.Assign the MX record for Server2 a priority of 20.

A.From the Exchange Management Shell， run the Set-Mailbox cmdlet
B.From the Exchange Management Shell， run the Set-MailboxDatabase cmdlet
C.From the Exchange Management Console （EMC）， modify the properties of each mailbox database
D.From the Exchange Management Console （EMC）， modify the properties of each Client Access server object

A.from DNS manager， create two new records for the Client Access servers.
B.from Failover Cluster Manager， create a new service named Client Access Server and assign a new IP address.
C.Install the Network Load Balancing feature on each server and assign a second IP address to each network adapter.
D.Deploy a hardware load balancer.Create a DNS record for the virtual IP address and configure a Client Access server array.