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Database Systems: Concepts, Design and Applications by S. K. Singh

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Tick (✓) the Appropriate Answer

1.An object-oriented approach was developed in the
  1. late 1960s.

  2. late 1970s.

  3. early 1980s.

  4. late 1990s.

2.Semantic Data Model (SDM) was developed by
  1. M. Hammer and D. McLeod.

  2. M. Hammer.

  3. D. McLeod.

  4. E.F Codd.

3.Object-oriented data models (OODMs) and object-relational data models (ORDMs) represent
  1. first-generation DBMSs.

  2. second-generation DBMSs.

  3. third-generation DBMSs.

  4. none of these.

4.An OODBMS can hold
  1. data and text.

  2. voice and video.

  3. pictures and images.

  4. All of these.

5.Which of the following is an OO feature?
  1. Polymorphism

  2. Inheritance

  3. Abstraction

  4. all of these.

6.Object-oriented concepts stem from
  1. SQL.

  2. OPL.

  3. QUEL.

  4. None of these.

7.OO concepts first appeared in programming languages such as
  1. Ada.

  2. Algol.

  3. SIMULA.

  4. All of these.

8.A class is a ...

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