You need to view which authentication method was used t…

Your network contains an Active Directory domain named contoso.com. The domain contains two servers
named Server1 and Server2 that run Windows Server 2012 R2.
Server2 establishes an IPSec connection to Server1.
You need to view which authentication method was used to establish the initial IPSec connection.
What should you do?

A.
From Windows Firewall with Advanced Security, view the quick mode security association.

B.
From Event Viewer, search the Application Log for events that have an ID of 1704.

C.
From Event Viewer, search the Security Log for events that have an ID of 4672.

D.
From Windows Firewall with Advanced Security, view the main mode security association.

Explanation:
Main mode negotiation establishes a secure channel between two computers by determining a set of
cryptographic protection suites, exchanging keying material to establish a shared secret key, and authenticating
computer and user identities. A security association (SA) is the information maintained about that secure
channel on the local computer so that it can use the information for future network traffic to the remote
computer. You can monitor main mode SAs for information like which peers are currently connected to this
computer and which protection suite was used to form the SA.

http://technet.microsoft.com/en-us/library/dd448497(v=ws.10).aspx