Informatica Data Warehousing Question:

Session - A Session Is A set of instructions that tells the Informatica Server How And When To Move Data From Sources To Targets. After creating the session, we can use
either the server manager or the command line program pmcmd to start or stop the session.
Batches - It Provides A Way to Group Sessions For Either Serial Or Parallel
Execution By The Informatica Server.
There Are Two Types Of Batches :
Sequential - Run Session One after the Other.
Concurrent - Run Session At The Same Time.