You are a desktop support technician for your company. The computers on the corporate network run Windows Vista, Windows XP Professional, Windows 2000 Professional or Windows NT 4.0 Workstation.

You need to ensure that the computers that run Windows Vista can communicate with the highest possible levels of data integrity and data encryption. You must also ensure that the computers that run Windows Vista can communicate with all other computers on the network.

Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.
Configure the local security policy with a new IPSec policy.

B.
Select the Do not allow unsecured communication option in the new policy.

C.
Configure the local security policy with a new Server Message Block signing policy.

D.
Select the Allow unsecured communications if a secure connection cannot be established option in the new policy.