单项选择题 You have an Exchange Server 2010 organization.You attempt to create a new address list based on each user¯s country attribut.You discover that the country attribute is unavailable in the New Address List wizard.You need to create a new address list based on user¯s countr. What should you do？（）

单项选择题 YouhaveanExchangeServer2010Mailboxserver.Youneedtoensurethatdeletedmailboxesarekeptfor60days.Whatshouldyoudo？（）

单项选择题 You have an Exchange Server 2010 server named Server1.Server1 has a single mailbox database named DB1 that contains 300 mailboxes.You need to ensure that a warning message is issued when a mailbox exceeds 2 GB.The solution must use the minimum amount of administrative effort. What should you do？（）