Database Systems Practice Test 182

Decomposition using Functional Dependencies MCQ Questions PDF - 182

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Database Systems: Decomposition using Functional Dependencies MCQ Quiz PDF Download

MCQ: An instance of a relation that satisfies all real-world constraints is called a

A) Associated instance

B) Legal instance

C) Participant instance

D) Domain instance

MCQ: In an E-R diagram, double lines are an indication of participation type

A) Total

B) Composite

C) Partial

D) Compound

MCQ: The type of database users that interact with the system without writing programs, are said to be

A) Application programmers

B) Specialized users

C) Sophisticated users

D) Naive users

MCQ: The optimizer that explores the space of all query-evaluation plans is called

A) Cost-based

B) Plan-based

C) Estimate-based

D) Count-based

MCQ: The large bodies of information do not exist in

A) Records

B) Fields

C) Integrity

D) Isolation

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