Your network contains an Active Directory domain named contoso.com.
The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012 R2. Server1 and Server2 have the Failover Clustering feature installed.
The servers are configured as nodes in a failover cluster named Cluster1.
You configure File Services and DHCP as clustered resources for Cluster1.
Server1 is the active node for both clustered resources.
You need to ensure that if two consecutive heartbeat messages are missed between Server1 and Server2, Server2 will begin responding to DHCP requests.
The solution must ensure that Server1 remains the active node for the File Services clustered resource for up to five missed heartbeat messages.
What should you configure?

A.
Affinity-None

B.
Affinity-Single

C.
The cluster quorum settings

D.
The failover settings

E.
A file server for general use

F.
The Handling priority

G.
The host priority

H.
Live migration

I.
The possible owner

J.
The preferred owner
K.
Quick migration
L.
the Scale-Out File Server

Explanation:
The number of heartbeats that can be missed before failover occurs is known as the heartbeat threshold
http://technet.microsoft.com/en-us/library/dn265972.aspx
http://technet.microsoft.com/en-us/library/dd197562(v=ws.10).aspx
http://blogs.msdn.com/b/clustering/archive/2012/11/21/10370765.aspx