Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) DBMS Integrity Constraints and Normal Form Functional Dependency
Comprehension Passage
Direction: Answer question based on the problem statement given below:
An organization needs to maintain database having five attributes A, B, C, D, E. These attributes the functionally dependent on each other for which functionally dependency set F is given as: F : (A → BC, D → E, BC → D, A → D}. Consider a universal relation R(A, B, C, D, E) with functional dependency set F. Also all attributes are simple and take atomic values only.Identify the redundant functional dependency in F
1
BC → D
2
D → E
3
A → D
4
A → BC