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

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Tick (✓) the Appropriate Answer

1.Which of the following is related to information?
  1. data

  2. communication

  3. knowledge

  4. all of these.

2.Data is:
  1. a piece of fact

  2. metadata

  3. information

  4. none of these.

3.Which of the following is element of the database?
  1. data

  2. constraints and schema

  3. relationships

  4. all of these.

4.What represent a correspondence between the various data elements?
  1. data

  2. constraints

  3. relationships

  4. schema.

5.Which of the following is an advantage of using database system?
  1. security enforcement

  2. avoidance of redundancy

  3. reduced inconsistency

  4. all of these.

6.Which of the following is characteristic of the data in a database?
  1. independent

  2. secure

  3. shared

  4. all of these.

7.The name of the system database that contains descriptions of data in the database is:
  1. data dictionary ...

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