Your company’s organization is authoritative for the contoso.com domain. Your network contains a Windows Server 2008 R2 certification authority (CA).
You have an Exchange Server 2010 server named Server1. Server1 has the Client Access, Hub Transport, and Mailbox server roles installed.
You plan to create a federated sharing relationship between your company and another company named Northwind Traders. Northwind Traders has an internal root CA.
You need to install a certificate that can be used to create the federated trust. The solution must minimize costs.
What should you do from Server1?
A. Generate a selfsigned certificate.
B. Request a Computer certificate from the contoso.com CA.
C. Create a computer certificate request and submit the request to a third party trusted CA.
D. Create a computer certificate request and submit the request to the Northwind Traders CA.
