You have an Exchange Server 2010 organization that contains five Hub Transport servers， five Mailboxservers and one Edge Transport server. 
You need to provide a solution to ensure that users can prevent legitimate inbound e-mail messages frombeing classified as spam. 
What should you do？（）

单项选择题You have an Exchange Server 2010 organization.  Your companys security policy states that users must not be able to encrypt e-mail messages by usingOutlook Web App （OWA）.  You need to recommend a client access solution that meets the requirements of the security policy.  What should you include in the solution？（）

A.managed folder mailbox policies
B.multiple OWA virtual directories
C.OWA segmentation
D.WebReady Document Viewing

多项选择题You have an Exchange 2010 organization.  Your companys security policy states that all connections to Outlook Web App （OWA） must use smartcard authentication.  You need to recommend a solution to meet the security policy requirements.  Which two possible ways to achieve this goal should you recommend？（）

A.Require certificate-based authentication for all Internet-facing Client Access servers.
B.Require Windows Integrated Authentication for all Internet-facing Client Access servers.
C.Deploy an Edge Transport server， and then disable Windows Integrated Authentication.
D.Deploy a server that runs Microsoft Internet Security and Acceleration （ISA） Server， and then enable Kerberos constrained delegation.

单项选择题You have an Exchange Server 2010 organization. You deploy an Edge Transport server.  You need to implement a message hygiene solution that meets the following requirements： .Users must be able to receive e-mail from external recipients who have been added to their Safe SendersLists .The Edge Transport server must block all e-mail sent to invalid addresses inside the organization  What should you do first？（）

A.Enable sender filtering.
B.Create Send connectors.
C.Configure real-time block lists （RBLs）.
D.Configure EdgeSync synchronization.

单项选择题Your network contains two Exchange Server 2010 Edge Transport servers and five Exchange Server2010 Hub Transport servers.  All e-mail sent from your organization to the Internet is transferred by the Edge Transport servers. You need to recommend a security solution for the organization to meet the following requirements： .Ensure that users can send encrypted messages to any other organization on the Internet  .Ensure that all Exchange-related communication between Hub Transport servers and Edge Transport servers is encrypted What should you recommend？（）

A.Deploy IPsec.
B.Deploy SMTP over SSL.
C.Implement Domain Security.
D.Implement Secure/Multipurpose Internet Mail Extensions （S/MIME）.

单项选择题You have an Exchange Server 2010 organization.  You plan to delegate administration of the organization.  You have a group named Technicians that contains all the level-two technicians in the organization. You need to ensure that the Technicians group can manage the properties of all the mailbox databases. The solution must minimize the number of permissions assigned to the Technicians group.  Which management role should you assign to the Technicians group？（）

A.Help Desk
B.Organization Management
C.Recipient Management
D.Server Management