Your network consists of an Active Directory domainand a DirectAccess infrastructure.
You install Windows 7 on a new portable computer and join the computer to the domain.
You need to ensure that the computer can establish DirectAccess connections.
What should you do?

A.
Install a computer certificate.

B.
Create a new network connection.

C.
Enable the Network Discovery firewall exception.

D.
Add the computer account to the Network Configuration Operators group.

Explanation:
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Certificates
The DirectAccess IPsec session is established when the client running Windows 7 and the DirectAccess server
authenticate with each other using computer certificates. DirectAccess supports only certificate-based
authentication.
DirectAccess Client Configuration
Clients receive their DirectAccess configuration through Group Policy. This differs from traditional VPN
configuration where connections are configured manually or distributed through the connection manager
administration kit. Once you have added the computer’s client account to the designated security group, you
need to install a computer certificate on the client for the purpose of DirectAccess authentication. An
organization needs to deploy Active Directory
Certificate Services so that clients can automatically enroll with the appropriate certificates.