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Database Management System Entrance Tests: Practice Test 2 (Chapter 12)

Relational Data Model and Database Constraints Multiple Choice Questions (MCQ) PDF Download - 2

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The Relational Data Model and Database Constraints Multiple Choice Questions (MCQ Quiz) with Answers PDF (Relational Data Model and Database Constraints MCQ PDF e-Book) download Ch. 12-2 to learn Database Management System Course. Solve Relational Database Schemas Multiple Choice Questions (MCQs), Relational Data Model and Database Constraints quiz with answers PDF to study DBA certification courses. The Relational Data Model and Database Constraints MCQ App Download: Free Database Management System App to learn relational model concepts, database constraints and relational schemas career test for online computer science and engineering.

The MCQs: In a relation schema, each key of schema having more than one key is classified as; "Relational Data Model and Database Constraints" App (Android, iOS) with answers: super key, candidate key, simple key, and parallel key to study DBA certification courses. Practice Constraints in SQL Quiz Questions, download Apple Book (Free Sample) for top computer science schools.

Relational Data Model & Database Constraints MCQs with Answers PDF Download: Quiz 2

MCQ: 6

In a relation schema, each key of schema having more than one key is classified as

  1. candidate key
  2. super key
  3. simple key
  4. parallel key
MCQ: 7

In the data model schemas, the constraints that are can not be expressed directly are classified as

  1. application based constraints
  2. semantic constraints
  3. business rules
  4. all of above
MCQ: 8

The cardinality in relational data model is considered as

  1. total number of values
  2. limited number of values
  3. two numbers from set
  4. three numbers from set
MCQ: 9

The constraint violated when the given value of attribute is not included in the corresponding domain is

  1. domain constraint
  2. attribute constraint
  3. key constraint
  4. lock constraint
MCQ: 10

If two or more constraints are violated by using insert operation then by default the

  1. insert is accepted
  2. insert is rejected
  3. insertion permanently blocked
  4. none of above

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