ABAP Interview Questions

1. What is the typical structure of an ABAP/4 program? 
ANS:-
   HEADER ,BODY,FOOTER.

2. What are field symbols and field groups.? 
    Have you used "component idx of structure" clause with field groups? 
    
ANS:-
    Field symbols:- 

    Field groups :-

Distinguish Between Reports, Abap Query,LIS

1) LIS stands for Logistics Information System. 

It is the information systems used to plan, control, and monitor business events at different stages in the decision-making process.

The Logistics Information System is made up of the following information systems which all have a modular structure: