单项选择题
A.On Server1 and Server2， install the Client Access server role. Implement failover clustering.
B.On Server1 and Server2， install the Client Access server role. Configure network interface card （NIC） teaming on each server.
C.Deploy two new Client Access servers. Implement load balancing by using DNS round robin.Create a Client Access server array.
D.Deploy two new Client Access servers. Implement load balancing by using a Windows Network Load Balancing cluster. Create a Client Access server array.
单项选择题 You deploy multiple Mailbox servers. Each Mailbox server contains a copy of a mailbox database named DB1. You need to recommend a solution that allows administrators to remove corrupt messages that have been replicated before the corrupt messages are applied to each copy of DB1. What should you recommend？（）
单项选择题 You have an Exchange Server 2010 organization. The network contains two Mailbox servers that are configured in a database availability group （DAG）. You plan to implement a disaster recovery solution. You need to recommend a solution that ensures that the active mailbox database copy is unaffected bythe backup process. You want to achieve this goal while minimizing costs. What should you recommend？（）
单项选择题 Your company has a main office and 10 branch offices. Each office connects to the Internet by using a direct link. The main office connects to the branch offices by using a WAN link. You plan to deploy Exchange Server 2010 servers in each office. You need to design Active Directory to meet the following Exchange Server 2010 requirements： .Users must be able to access their mailboxes if a single domain controller fails .Users must be able to send e-mail messages to the Internet if a WAN link fails What should you include in the design？（）