1) Three session are used, if session 1 completed session 2 has to start and once session 2 completed session 3 has to start. It should be sequential. 2) how do you compare two files in unix. 3) mechanism how diff command works. 4) 3 i/p used say A B C in aggregator, and the o/p should be as A & B, B & C, C & A. How do you design the mapping. 5) In Sorter transformation 10 i/p is used, if group by port is not marked, what would be the o/p.
