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

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]
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]


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