Interview Questions at FIS,Noida

When I attend the interview in FIS for support profile,interviewer focused on Java mainly for support profile.He asked some program related questions in which we have to give answer from options.
Basic terms that should be prepared by candidate while preparing for interview of Support profile.
Programming Language
Java

b) Generics

c)  Object Oriented

d) Run time error

e) Exceptions Handling


class JavaException {
   public static void main(String args[]){
      int d = 0;
      int n =20;
      int fraction = n/d;
     System.out.println("End Of Main");
   }
}

f) Compile time errors

g) OOPS

h) Output/input Examples

Database
DB2/Oracle

Left join
Outer join
Full outer join
Inner join
Right Join

How to make left outer join into Inner join by giving example?