Deutsche Bank Interview Question

Q) Create a class and implement getter and setter functions. Q) Implement the concept of inheritance and explain the difference between data abstraction and data encapsulation. Q) A question on DBMS which uses the concept of group by clause. Q) How will you handle the null values in the frontend coming from the database? Q) Name a protocol which is being used at Transport layer. Q) Implement function overriding with the concept of late binding.