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Database Management System Exam Prep MCQs – Mock Test 44

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Free Database Constraints & Relational Schemas MCQs App Download (Android & iOS): "Multi-valued dependencies and functional dependencies are classified as category of"; MCQ with answers: data dependencies, relation dependencies, attribute dependencies, and entity dependencies. Practice Relational Data Model and Database Constraints Questions and Answers, Google e-Book to download free chapter to build digital skills.

Database Constraints & Relational Schemas MCQ – Mock Test 44 PDF Download

MCQ 216: The multi-valued dependencies and functional dependencies are classified as category of:

  1. relation dependencies
  2. data dependencies
  3. entity dependencies
  4. attribute dependencies

MCQ 217: In the statement DECIMAL (I, j) to specify numeric data type, the digits after the decimal point are called:

  1. the precision
  2. the scale
  3. the string
  4. the numeric strip

MCQ 218: The module of DBMS which focuses on eliminating redundancies, operations reordering and rearrangements is classified as:

  1. schema optimizer
  2. query optimizer
  3. interface optimizer
  4. graphical optimizer

MCQ 219: The model in which the multi-valued and composite attributes is considered as:

  1. reverse relational model
  2. flat relational model
  3. parallel relational model
  4. circular relational model

MCQ 220: The time which is needed for consecutive blocks transferring is classified as:

  1. rotational delay
  2. bulk transfer rate
  3. reel time
  4. seek time

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