Database Systems MCQs – Practice Test 14 (Chapter 4)

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Database Design and ER Model MCQ – Practice Test 14 PDF Download

MCQ 66: In an E-R diagram, the part formed by data representation of an overall system design, is:

One part
Two parts
Three parts
Four parts

MCQ 67: When an entity in set A is associated with at most one entity of set B, the cardinality is of type:

Many-to-many
One-to-many
One-to-one
Many-to-one

MCQ 68: Within an entity set, the process of designation of subgroups is known as:

Ownership
Designation
Specialization
Triggering

MCQ 69: In E-R diagrams, a weak entity set is represented just like a strong entity set, but there are main differences of type(s):

1 type
2 types
3 types
4 types

MCQ 70: The UML diagram that depicts the hardware system component level and its interconnections, is said to be:

E-R diagram
Implementation diagram
Activity diagram
Use case diagram

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