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Database Systems MCQs (Computer Science) From Textbook

Database Systems MCQs – Mock Test 409

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The View of Data Quiz Questions and Answers PDF (View of Data Quiz with Answers PDF e-Book) download Ch. 13-409 to learn Database Systems Practice Tests. Solve Introduction to DBMS MCQ with answers PDF, View of Data Multiple Choice Questions (MCQ Quiz) for computer science programs. The View of Data App Download: Free Database Systems Quiz App to learn database views, purpose of database systems, application architectures, view of data test prep for information and communication technology.

The MCQ: Data model that permits the specification of data where individual data items of same type may have different sets of attributes, is known as; "View of Data" App Download [Free] with answers: entity relationship model, relational model, semi-structured data model, and object-based data model for computer science programs. Learn Introduction to DBMS Questions and Answers, Apple iBook to download free chapter for online computer science classes.

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MCQ 2041: Data model that permits the specification of data where individual data items of same type may have different sets of attributes, is known as:

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

MCQ 2042: The architecture layer of the application that provides a high-level view of data and actions on data is known as:

  1. Business-logic layer
  2. View-logic layer
  3. Domain-logic layer
  4. Data-logic layer

MCQ 2043: The various copies of the same data may no longer agree, is the process known as:

  1. Data redundancy
  2. Data Isolation
  3. Data Duplication
  4. Data Inconsistency

MCQ 2044: The database system stores the query expression associated with the:

  1. View
  2. View definition
  3. View relation
  4. View schema

MCQ 2045: A special value that signifies that the value is unknown or does not exist, is said to be:

  1. Null
  2. Unknown
  3. Known
  4. 0

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