单项选择题 You work as the exchange administrator at TestKing.com. The TestKing.com network contains an Exchange Server 2010 Organization. TestKing.com has its headquarters in Stockholm where you are located.The TestKing.com network contains a database availability group （DAG）. You receive an instruction fromthe management to devise a Mailbox database security solution for the organization. Management wantsthe read/write performance to be maximized as well as ensuring that any access to the database isprohibited in the event of theft. What should you do？（）

单项选择题 You work as the exchange administrator at TestKing.com. The TestKing.com network contains an Exchange Server 2010 Organization. You are responsible for managing an Active Directory Managment Services server named TESTKING-EX01. TestKing.com users currently make use of Outlook Web App （OWA） to access their mailboxes.During the course of day you receive an instruction form the CIO to devise a security solution plan for the organization. Management wants you to ensure that e-mail messages are stored in an encrypted formatand that the administator-defined templates are used to secure messages. What else should you incorporate？（）

单项选择题 You work as the exchange administrator at TestKing.com. The TestKing.com network contains an Exchange Server 2010 Organization. You are responsible for managing the Exchange network for TestKing.com The organization contains three Exchange Server 2010 Edge Transport Servers and seven ExchangeServer 2010 Hub Transport servers. The Edge Transport server is used to transfer e-mail from your organization to the Internet. During the course of day you receive an instruction form the CIO to ensure that all clients is able to send encrypted messages to other organizations over the Internet as well asensuring that communications between the Hub Transport servers and the Edge Transport servers isencrypted. What should you do？（）