Your network contains a server named Server1 that runs Windows Server 2012 R2. Server1 has the
Active Directory Certificate Services server role installed and is configured as a standalone
certification authority (CA).
You install a second server named Server2. You install the Online Responder role service on Server2.
You need to ensure that Server1 can issue an Online Certificate Status Protocol (OCSP) Response
Signing certificate to Server2.
What should you run on Server1?

A.
The certreq.exe command and specify the -policy parameter

B.
The certutil.exe command and specify the -getkey parameter

C.
The certutil.exe command and specify the -setreg parameter

D.
The certreq.exe command and specify the -retrieve parameter

Explanation:
To prepare a computer running Windows Server to issue OCSP Response Signing certificates

On the server hosting the CA, open a command prompt, and type:
certutil -v -setreg policy\EnableRequestExtensionList +1.3.6.1.5.5.7.48.1.5
Stop and restart the CA. You can do this at a command prompt by running the following commands:
net stop certsvc
net start certsvc

Configure a CA to Support OCSP Responders
https://technet.microsoft.com/en-us/library/cc732526.aspx