单项选择题
A.Install and then configure the SMTP server feature.
B.Start the Microsoft Exchange POP3 service and then set the startup type to Automatic.
C.Modify the properties of the MSExchangePOP3 （TCP-in） Windows Firewall rule.
D.Modify the properties of the MSExchangeMailSubmission - RPC （TCP-in） Windows Firewall rule.
单项选择题 YouworkastheenterpriseexchangeadministratoratXxx.XxxisusingMicrosoftExchangeServer2010astheirmessagingsolution.TheXxxnetworkhasaDNSservernamedXXX-SR04.WhatactionsmustyoutaketohavetheHubTransportserversdonotuseXXX-SR04toresolvenamesontheInternet？（）
单项选择题 You deploy an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.The organization contains two Hub Transport servers.The network contains two Active Directory sites named Site1 and Site2.Each site contains one Hub Transport server.Each site has a direct connection to the Internet.You need to configure message routing for the organization to meet the following requirements： （1）E-mail messages sent to a SMTP domain named nwtraders.com must be delivered from Site2. （2）If Site2 is unavailable， e-mail messages sent to nwtraders.com must be delivered from Sitel. （3）E-mail messages sent to all other SMTP domains must be delivered from Sitel only. What should you do？（）
单项选择题 You have an Exchange organization. The Exchange servers in the organization are configured as shown in the following table.You deploy a new Exchange Server 2010 Client Access server named Server4 and successfully update the required DNS records for Server4. You need to ensure that all users on Server3 can successfully access their mailboxes by using Exchange ActiveSync. What should you do（）？