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

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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:

Total
Whole
Partial
Moment

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

Identifying entity
Relatable entity set
Strong entity set
Relational entity set

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

Sufficient entity set
Strong entity set
Weak entity set
Rational entity set

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

XML
UML
E-R diagram
Both A and B

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

Subclass-superclass relationship
Superclass-subclass relationship
Higher-level relationship
Lower-level relationship

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