多项选择题 You have an Exchange Server 2010 organization that contains a Mailbox server named MBX1， a Client Access server named CAS1， and a Hub Transport server named Hub1.Some users report that they have performance issues when they use Microsoft Office Outlook.You need to gather the RPC performance data from the servers. What are two possible ways to achieve this goal？（）

单项选择题 You have an Exchange Server 2010 Mailbox server that contains multiple mailbox databases.You need to ensure that you receive an e-mail alert if the volume that contains the mailbox database files has less than 25 percent of free space. What should you do？（）

单项选择题 YouhaveanExchangeServer2010organization.Youneedtoviewthereplicationstatusofamailboxdatabasecopy.Whatshouldyoudo？（）