Database Architecture & Modeling MCQs | DBMS Multiple Choice Questions and Answers

Questions

21 Which one of the following design is both software and hardware independent ?

A Logical

B Physical

C Conceptual

D None of the above

Answer: Option [C]

22 Object based data models are used in describing the abstraction of the following level :

A Only physical

B Conceptual and view

C Physical and conceptual

D None of the above

Answer: Option [B]

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23 A schema describes :

A Record Relationship

B Data Elements

C Record and files

D All of the above

Answer: Option [D]

24 An abstraction concept for building composite object from their component object is called :

A Specialization

B Normalization

C Generalization

D Aggregation

Answer: Option [D]

25 Manager’s salary details are hidden from the employee. This is :

A Conceptual level data hiding

B Physical level data hiding

C External level data hiding

D None of these

Answer: Option [A]