Gce Model Questions Vol1 2023 Computer Studies Question 14

Practice objective / multiple choice question 14 from the 2023 Gce Model Questions Vol1 Computer Studies examination.

Gce Model Questions Vol1 2023 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 14 GCE_MODEL_QUESTIONS_VOL1 • 2023 • COMPUTER_STUDIES • objective

Relation R(A,B,C,D,E) has the functional dependencies: A→B, C→D, B→C, and A,E→D. Determine the highest normal form that R satisfies and give a lossless, dependency‑preserving decomposition of R into relations that are in Third Normal Form (3NF).

Answer Options

Correct Answer A. Highest normal form: 1NF. 3NF decomposition: R1(A,B), R2(B,C), R3(C,D), R4(A,E).
B. Highest normal form: 2NF. 3NF decomposition: R1(A,B), R2(C,D), R3(A,E).
C. Highest normal form: 3NF. 3NF decomposition: R1(A,B), R2(B,C), R3(C,D), R4(A,E).
D. Highest normal form: 1NF. 3NF decomposition: R1(A,B), R2(C,D), R3(B,E).
Correct Answer
A
Correct Option:
Highest normal form: 1NF. 3NF decomposition: R1(A,B), R2(B,C), R3(C,D), R4(A,E).

About This Question

This is Gce Model Questions Vol1 2023 Computer Studies Question 14. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Computer Studies examination.

Difficulty level: Medium .

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