Some basis questions(answers needed)-Urgent

Question

Hi all,
Please help me ..........
1)Difference between Synchronus and asynchronus transports?
2)How to set the trace level for file dev_rd?
3)How to find who moved the transport request from DEV to QUA?
4)How to trobuleshoot long running background job?
5)How to define transport directory when configurinh Domain controller?
Regards,
Nagarjun.

Answer 1

1) 
import is executed synchronously, dialog or background process is blocked until import has ended.
import is executed asynchronously, dialog or batch process is released after import was started
2)
You can increase  the trace level
Tcode sm50-> select work process (F5 select all)
---> CTRL SHIFT (F7)  (press keys ctl shift F7      F7 function key
---> select component and trace level
-->save and exit
3)
Check the import queue of QUA
4)
Tcode ---> sm37
search for active jobs
5)
bye default it will <Drive>:usr>/sap/Trans/
Regards
Ben