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DAD 220 - 4-1 QUIZ EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
Quiz: To be used as a primary key, which of these characteristics
must an attribute have in a single instance of the entity? Select all that
apply.
Question options:
There must be a maximum of one attribute instance.
There must be many instances of the attribute.
There must be at most one entity instance that each attribute
instance describes.
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There must be at least one instance of the attribute.
There must be zero or more instances of the attribute.
Ans: There must be a maximum of one attribute instance.
There must be at most one entity instance that each attribute instance
describes.
There must be at least one instance of the attribute.
Quiz: A singular attribute is also known as a unique attribute.
Question options:
True
False
o
o
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[+ 254707240657]
o For online exams and tutor expert, please
whatsapp me in the number given.