1. Which of the following statements is (are) correct?
- a) Phsical level abstraction describes how a record is stored.
- b) View level abstraction hides details of data types.
- c) Physical level abstraction describes data stored in a database and their relationships.
- d) Logical level abstraction defines the physical schema.
Answer :- b
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2. Consider the following relations:
Subject (sid, sname, credit)
Faculty (fid, sid)
Which of the following is correct?
- a) RA1 C RAz
- b) RAg C RAg
- c) RAI C RAg
- d) RA1 = RAg
Answer :- b
| Course Name | Data Base Management System |
| Category | NPTEL Assignment Answer |
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