Neco 2025 Computer Studies Question 8

Practice objective / multiple choice question 8 from the 2025 Neco Computer Studies examination.

Neco 2025 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 8 NECO • 2025 • COMPUTER_STUDIES • objective

Consider a relation \(R(A,B,C,D,E)\) with the functional dependencies:\n\n1. \(A \rightarrow B\)\n2. \(B \rightarrow C\)\n3. \(AD \rightarrow E\)\n4. \(CD \rightarrow A\)\n\nDetermine all candidate keys of \(R\) and state the highest normal form (1NF, 2NF, 3NF, or BCNF) that \(R\) satisfies.

Answer Options

A. Candidate keys: AD, CD; Highest normal form: 2NF
B. Candidate keys: AD, CD, BD; Highest normal form: BCNF
C. Candidate keys: AB, AC, BD; Highest normal form: 3NF
Correct Answer D. Candidate keys: AD, CD, BD; Highest normal form: 3NF
Correct Answer
D
Correct Option:
Candidate keys: AD, CD, BD; Highest normal form: 3NF

About This Question

This is Neco 2025 Computer Studies Question 8. It is one of the objective questions from the 2025 Neco Computer Studies examination.

Difficulty level: Medium .

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