You have two servers named Server1 and Server2. Both servers run Windows Server 2008 R2. Server1 is configured as an enterprise root certification authority (CA). You install the Online Responder role service on Server2.

You need to configure Server1 to support the Online Responder.

What should you do?

A.
Import the enterprise root CA certificate.

B.
Configure the Certificate Revocation List Distribution Point extension.

C.
Configure the Authority Information Access (AIA) extension.

D.
Add the Server2 computer account to the CertPublishers group.

Explanation:
To configure online responder role service on S1, you should configure AIA extension.
The authority information access extension indicates how to access CA information and
services for the issuer of the certificate in which the extension appears. Information and
services may include on-line validation services and CA policy data. (The location of
CRLs is not specified in this extension; that information is provided by the
cRLDistributionPoints extension.) This extension may be included in subject or CA
certificates, and it MUST be non-critical