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Database Systems MCQs (Computer Science) From Textbook

Database Systems Exam MCQs – Practice Test 12 (Chapter 4)

Database Design and ER Model Notes Questions with Answers PDF Download – Test 12

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Free Database Design and ER Model Study App with MCQ: "If only some entities in E participate in relationships in R, the participation of entity set E in relationship R is said to be"; with answers: whole, total, partial, and moment. Practice Overview of SQL Query Language Quiz Questions, download Kobo e-Book (Free Chapter) to develop database skills.

Database Design and ER Model MCQs – Practice Test 12 PDF Download

MCQ 56: If only some entities in E participate in relationships in R, the participation of entity set E in relationship R is said to be:

  1. Total
  2. Whole
  3. Partial
  4. Moment

MCQ 57: Every weak entity must be associated with a/an:

  1. Identifying entity
  2. Relatable entity set
  3. Strong entity set
  4. Relational entity set

MCQ 58: An entity set that has a primary key is known as:

  1. Sufficient entity set
  2. Strong entity set
  3. Weak entity set
  4. Rational entity set

MCQ 59: The most widely used notations for modeling data, is:

  1. XML
  2. UML
  3. E-R diagram
  4. Both A and B

MCQ 60: The relationship of specialization may also be known as a/an:

  1. Subclass-superclass relationship
  2. Superclass-subclass relationship
  3. Higher-level relationship
  4. Lower-level relationship

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