单项选择题You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.Company.com contains an exchange server 2010 server named -sr15 that has the following roles installed: client access, hub transport, and mailbox server.the Company.com also has a windows server 2008 r2 certification authority (ca).Company.com has merged with another company named Courseware Publishers that contains an internal root C A.You have received instructions from the CIO to install a certificate to create the federated trust as well as to reduce the cost. What should you do?()
A.You need to set up a computer certificate request on -sr15; thereafter you should submit the request to a third-party trusted ca
B.You need to use -sr15 and generate a self-signed certificate
C.You need to use request a computer certificate from the Company.com.com ca from -sr15
D.You need to set up a computer certificate request on -sr15; thereafter you should submit the request to courseware publishers ca