abap and SAP_XI que

1. what are the abap methods at the i/b and o/b sides.

2.how to create i/b and o/b proxies

3.what are conversion routines.

4.what is falt MSG and where it is used.

5.an it possible to do with single node.

6.what is a record set.

7.where we give the processing parameters & where it is used.

8.how to processes a text files.

9.what is reciver determination step

10.how to do multi mapping