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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 database element?
  1. data

  2. constraints and schema

  3. relationships

  4. all of these.

2.What separates the physical aspects of data storage from the logical aspects of data representation?
  1. data

  2. schema

  3. constraints

  4. relationships.

3.What schema defines how and where the data are organised in a physical data storage?
  1. external

  2. internal

  3. conceptual

  4. None of these

4.Which of the following schemas defines the stored data structures in terms of the database model used?
  1. external

  2. conceptual

  3. internal

  4. none of these.

5.Which of the following schemas defines a view or views of the database for particular users?
  1. external

  2. conceptual

  3. internal

  4. none of these.

6.A collection of data designed to be used by different people is called: ...

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