Your network contains three servers named ADFS1, ADFS2, and ADFS3 that run Windows Server 2008 R2. ADFS1 has the Active Directory Federation Services (AD FS) Federation Service role service installed.
You plan to deploy AD FS 2.0 on ADFS2 and ADFS3.
You need to export the token-signing certificate from ADFS1, and then import the certificate to ADFS2 and ADFS3.
A.
Personal Information Exchange PKCS #12 (.pfx)
B.
DER encoded binary X.509 (.cer)
C.
Cryptographic Message Syntax Standard PKCS #7 (.p7b)
D.
Base-64 encoded X.S09 (.cer)