Distributed Transaction Coordinator on SQL Server Cluster

[mleal]

Please, what is the MS DTC and why do I need to use it on a Cluster
configuration?

How SQL Server works with it? How SQL "see" / reach it?

If I'm using a cluster active / active how does it work? (I'm asking
because I have installed DTC as active / passive).

I know that I need to install it, but do not know why.


Regards,
Marcio