You work as the exchange administrator at TestKing.com. The TestKing.com network contains an
Exchange Server 2003 Organization. The Exchange Server 2003 Organization contains a front end servernamed TESTKING-EX01 as well as a back end server named TESTKING-EX02 that is accessible fromthe Internet using mail.testking.com.
TestKing.com wants to migrate the Exchange Server 2003 organization to Exchange Server 2010. You receive an instruction to deploy a Mailbox server named TESTKING-SR01 and a Client Access Servernamed TESTKING-SR02. Management also want all users to access Outlook Web Access and OutlookWeb App （OWA） using the https：//mail.testking.com URL. You need to determine the DNS configurationfor the external name of mail.testking.com.
What should you do？（）

You are employed as the enterprise exchange administrator at TestKing.com. TestKing.com makes use of Microsoft Exchange Server messaging solution. You are responsible for managing the Exchange Server2010 organization.
TestKing.com makes use of an Edge Transport server to send and receive e-mail messages. You discover that a number of servers on the Internet classify e-mail messages from your organization asspam. You receive an instruction from management to reduce the likelihood of e-mails sent by theorganization to be classified as spam.
What should you do？（）