SQL Server 2012 Failover Cluster configuration questions

Hi,

I have few questions on , SQL Server 2012 Failover cluserting pleasse provide suggestions:

1) In SQL Server 2012 is there a configuration for active / passive Failover Cluster installation? If so how is it done? if you could provide any links or articles that would help.

OR 

Is this been replaced by Always ON Availability Groups?

2) Also in our environment we have done active/active installation but at a time my understanding is only node has the ownership to the shared storage versus both the nodes, is that correct? If not please provide an explanation?

Any additional information would be valuable in clearing my doubts?

Thank youy

Malini=