What are Reconciliatiion for finding records-->Add element--> source and destination and Feilds to update --->Add element--> source and destination,, In update Data?After loading a specific file how the data gets updated ?

How reconcile is different from enrichment?

What are Resource and Target options in " Properties " of Query ? what they do ? 

What is the "Number of unique record to keep ,, If the value of the field is 2: " condition in the de duplication..? please explain? 

So intersection works togeather with the exclusion ?

What are ?"Results" and "Complement" in exclusion targeting activity?