You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed. You need to ensure that you can restore a mailbox deleted from a mailbox database if the mailbox was deleted up to six months earlier.Th solution must not require a database backup. What should you do？（）

You have an Exchange Server 2010 organization that contains 20 mailbox databases. You configure each database to retain all deleted items for 30 days.You need to ensure that all items that pass the retention period are permanently deleted daily between 02：00 and 06：00. Which cmdlet should you use？（）

You have an Exchange Server 2010 organization that contains five Mailbox servers.Your Active Directory domain contains five domain controllers in a single site. You create a new mailbox database.You notice that the database fails to mount. You need to ensure that the database mounts as soon as possible. What should you do？（）

You have an Exchange organization named nwtraders.com.All servers in the organization have Exchange Server 2010 Service Pack 1 （SPl） installed.Your company acquires another company named Contoso， Ltd. You plan to create new mailboxes for each user from Contoso. You need to ensure that each new mailbox can receive e-mail messages sent to contoso.com.Which two objects should you create？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.All servers run Windows Server 2008 R2.The organization contains Mailbox servers， Client Access servers， and Hub Transport servers only.You need to identify which user accounts are associated with the largest mailboxes in the organization. What should you do？（）

Your network contains two Exchange Server 2010 Service Pack 1 （SP1） Mailbox servers. You create a database availability group （DAG）.You need to install all of the Failover Clustering components on to the Mailbox servers. What should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed. The organization contains a database availability group （DAG） named DAG1.DAG1 contains two Mailbox servers named Server1 and Server2.Five mailbox databases are replicated in DAG1.You need to install Exchange rollup updates on Server1.The solution must not prevent users from accessing their mailboxes. What should you do first？（）

You have an Exchange Server 2010 Service Pack 1 organization named contoso.com.All users have the  contoso.com e-mail address suffix. You discover that both anonymous and authenticated users can post content to a public folder named Folder1 by sending e-mail messages to folder1@contoso.com.You need to prevent all users from posting content to Folder1 by sending e-mail.What should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed. The organization contains two Mailbox servers named Server1 and Server2.Each Mailbox server has one mailbox database and one public folder database. You discover that all users create public folders on Server1 only. You need to ensure that all users create public folders on Server2 only. What should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.All servers run Windows Server 2008 R2.The organization contains Mailbox servers， Client Access servers， and Hub Transport servers only. You need to ensure that you can review any changes made by administrators to the Exchange configuration.The solution must identify which administrator performed each change. What should you do？（）