单项选择题
A.Run the Get-MailBoxStatistics cmdlet.
B.Run the Get-StoreUsageStatistics cmdlet.
C.Add the MSExchangeIS Client performance counters to the Performance Monitor.
D.Add the MSExchangeIS Mailbox performance counters to the Performance Monitor.
单项选择题 YouhaveanExchangeServer2010Mailboxserver.Theservercontainsonemailboxdatabase.Youneedtoviewthelastlogontimeofallusersintheorganization.Whatshouldyoudo？（）
单项选择题 YouneedtomodifytheExchange-specificcostforasitelinknamedLink1.Whatshouldyoudo？（）
单项选择题 You have an Exchange Server 2010 organization named contoso.com that contains a mail-enabled group named Group1. Users from outside the organization report that e-mail messages sent to group1@contoso.com generate a non-delivery report （NDR）.You need to ensure that users outside the organization can successfully send e-mail to group1 @ contoso.com. What should you modify？（）