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Database Systems MCQs – Practice Test 49 (Chapter 13)

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Free "Introduction to DBMS MCQs" App Download with MCQ: Object-oriented data model combines features of the; with answers: entity relationship and object-based data model, relational and object-based data model, rational and object-based data model, and semi-structured and object-based data model. Solve Basic Structure of SQL Queries Quiz Questions, download Google e-Book (Free Chapter) to develop career skills.

Introduction to DBMS MCQs – Practice Test 49 PDF Download

MCQ 241: Object-oriented data model combines features of the:

  1. Relational and Object-based data model
  2. Entity relationship and Object-based data model
  3. Rational and Object-based Data model
  4. Semi-structured and Object-based data model

MCQ 242: At the physical level a record can be described as a:

  1. bit
  2. Byte
  3. Block
  4. Data type

MCQ 243: The values of the variables in a program at a point in time correspond to an:

  1. Instance of schema
  2. Block of schema
  3. Point in schema
  4. Boundary of schema

MCQ 244: The Extensible Markup Language (XML) is widely used to represent:

  1. Entity relationship model
  2. Relational Model
  3. Semi-structured data model
  4. Object-based Data model

MCQ 245: The designer maps the high-level conceptual schema onto the implementation data model of the database that will be used, in:

  1. Logical design phase
  2. Physical design phase
  3. View design phase
  4. Virtual design phase

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