TRB - Computer Instructor - Computer Science - Relational Database Management System

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Question - 1

The process of designing subgrouping within an entity set is called

  • A specialization
  • B generalization
  • C aggregation
  • D instantiation

Question - 2

The data in the database at particular moment of time is called

  • A schema
  • B snapshot
  • C intension
  • D extension

Question - 3

In a DBMS, where the participating DBMSs are loosely coupled and have a degree of local autonomy known as

  • A distributed DBMS
  • B federated DBMS
  • C object oriented DBMS
  • D centralized DBMS

Question - 4

The users who maintain personal databases by using readymade program packages that provide easy-to-use menu or graphics based interface, known as

  • A Casual end user
  • B Native end user
  • C Sophisticated end user
  • D Stand alone user

Question - 5

The process of assigning similar objects/entities to object classes/entity type, known as

  • A classification
  • B instantiation
  • C specialization
  • D generalization

Question - 6

The process of classifying a class of object into more specialized subclasses is

  • A classification
  • B instantiation
  • C specialization
  • D generalization

Question - 7

A subclass can be a subclass in more than one class or subclass relationship, this method is known as

  • A specialization
  • B specialization lattice
  • C shared subclasses
  • D specialization

Question - 8

The process where the same entity member of more than one subclass of the specialization is known as

  • A disjoint
  • B overlapping
  • C mapping
  • D snapshot

Question - 9

Conceptual schema is transformed from high level data model into the implementation data model. This step is called

  • A data model mapping
  • B conceptual schema
  • C functional mapping
  • D conceptual operation

Question - 10

In a phase of database design where the internal storage structure, access paths and file organization for the database files are specified. The phase is known as

  • A logical design
  • B physical design
  • C conceptual design
  • D functional operations
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