Question 3. a) What are the major inputs into the physical database design and build process? Discuss in detail the decisions that are influenced by those inputs? (30 marks) b) With an Oracle Database in mind, outline the basic data storage options available, discuss primary and secondary storage and the options available today. (20 marks) c) What are the many benefits of using Tablespaces? Give examples. (20 marks) d) What is the role and benefit of an Index? (10 marks) e) Explain query optimisation as implemented in an Oracle environment. 120 markal