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Database Systems Entrance Tests: Mock Test 120

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The View of Data MCQ with Answers PDF (View of Data Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 13-120 to learn Database Systems Practice Tests. Learn Introduction to DBMS Test PDF, View of Data Multiple Choice Questions (MCQ Quiz) for online bachelor's degree computer science. The Database Systems MCQs App Download: Free View of Data App to learn relational algebra, sql data types and schemas, view of data test prep for software engineering degree programs.

The MCQ: The abstraction level that describes complex low-level data structures in detail, is; "View of Data" App (Free Android & iOS) with answers: view level, physical level, logical level, and virtual level for online bachelor's degree computer science. Practice Introduction to DBMS Questions and Answers, Google eBook to download free sample for online college courses.

View of Data MCQ Quiz with Answers PDF Download: Test 120

MCQ: 596

The abstraction level that describes complex low-level data structures in detail, is

  1. Physical level
  2. View level
  3. Virtual level
  4. Logical level
MCQ: 597

The third level of abstraction, that simplifies the user interaction to the system is

  1. Virtual level
  2. Physical level
  3. Logical level
  4. View level
MCQ: 598

An index on an attribute of a relation is a data structure that allows database system to find tuples in relation that have specified value for attribute

  1. Efficiently
  2. Inefficiently
  3. Costly
  4. Optimized
MCQ: 599

The expression r -s represents a

  1. Arity
  2. Unity
  3. Projection
  4. Set-difference
MCQ: 600

Declarative DMLS requires a user to specify what data are needed and

  1. Specifying how to get data
  2. Provides data model
  3. Provides Schema
  4. Not specifying to get data

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View of Data MCQs App (Android & iOS)

View of Data MCQs App

DataBase Management System (MCS) MCQs App (iOS & Android)

DataBase Management System (MCS) MCQs App

Inventions MCQ App (Android & iOS)

Inventions MCQ App

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