Database Systems Practice Test 65

Specialization Quiz Questions and Answers PDF - 65

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The Quiz: Specifying whether or not an entity in the superclass set must belong to at least one of subclass sets within specialization, by the constraint type; "Specialization" App Download (Free) with answers disjointness constraint, completeness constraint, overlapping constraint and existence constraint to study online courses. Solve database design and er model questions and answers, Amazon eBook to download free sample for computer information science.

Specialization Questions and Answers PDF Download: Quiz 65

MCQ 321: Specifying whether or not an entity in the superclass set must belong to at least one of subclass sets within specialization, by the constraint type

A) Completeness constraint

B) Disjointness constraint

C) Overlapping constraint

D) Existence constraint

MCQ 322: The operation that can be thought of as viewing a slice of the data cube, is referred to as

A) Drill down

B) Slicing

C) Dicing

D) Pivoting

MCQ 323: In E-R diagrams, a weak entity set is represented via a

A) Rectangle

B) Diamond

C) Circle

D) Double diamonds

MCQ 324: A logical entity including a SQL statement is called

A) Database object

B) Database operation

C) Database definition

D) Database declaration

MCQ 325: Time critical systems, focuses on having the factor of

A) High response time

B) Low response time

C) Low throughput

D) High throughput

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