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 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 work as the exchange administrator at company.com.the company.com network contains an exchange server 2010 organization.you are responsible for managing the exchange network for company.com.the company.com network contains two mailbox servers named -ex01 and -ex02 as well as a mailbox database named -ex03.-ex01 and -ex02 are members of a database availability group named tkdag and contain a copy of -ex03.during the course of the week you receive an instruction from the cio to remove the -ex03 mailbox database from -ex01.what should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.The network contains an internal root certification authority （CA）.Users on the network use Outlook Anywhere.A Client Access server uses a wildcard certificate issued by a trusted third-party root CA.You need to ensure that users can send and receive encrypted e-mail messages by using S/MIME. What should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed. You need to ensure that each user who sends a meeting request to a room mailbox receives a custom message from the mailbox. What should you do from the properties of the mailbox？（）

You have an Exchange Server 2010 organization.You have a user named User1 and a user named User2. You need to ensure that User1 can add User2 to the From field when he sends e-mail messages. Messages that have User2 in the From field must display only User2 as the message sender to recipients Who receive the messages. What should you use？（）

Your company has a main office and a branch office. All branch office administrators are members of a custom management role group.The role group is configured to allow members to manage recipients.The branch office administrators are also members of The Domain Admins security group. The organization contains one Exchange Server 2010 server. You discover that the branch office administrators can manage recipients in both offices. You need to ensure that the branch office administrators can manage recipients in their assigned branch office only.What should you do？（）

You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.You need to identify why a remote SMTP server rejects e-mail sent from the organization. What should you do？（）

You have an Exchange Server 2010 organization.You need to ensure that you can install the Exchange Server 2010 administration tools on a desktop computer that runs Windows 7. What should you install first？（）

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？（）