Your network contains two servers named Server1 and Server2 that run Windows Server
2008 R2. Server1 has the Active Directory Federation Services (AD FS) Federation Service
role service installed. You plan to deploy AD FS 2.0 on Server2. You need to export the
token-signing certificate from Server1, and then import the certificate to Server2. Which
format should you use to export the certificate?

A.
Base-64 encoded X.509 (.cer)

B.
Cryptographic Message Syntax Standard PKCS #7 (.p7b)

C.
DER encoded binary X.509 (.cer)

D.
Personal Information Exchange PKCS #12 (.pfx)