πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!

    Question

    AB`->` CD AF`->` D DE`->` F C`->`

    G F`->` E G`->` A Then which of the following is false?
    A (CF) CLOSURE WILL BE {C,F,G,E,A,D} Correct Answer Incorrect Answer
    B (BG) CLOSURE WILL BE {B,C,A,D,G} Correct Answer Incorrect Answer
    C (AF) CLOSURE WILL BE {A,F,E,D} Correct Answer Incorrect Answer
    D (AB) CLOSURE WILL BE {A,F,E,D} Correct Answer Incorrect Answer
    E Both 3 and 4 are incorrect Correct Answer Incorrect Answer

    Solution

    AB+ = {A, B, C, D, G} β†’ ❌ Missing F, E β†’ So, AB is not a candidate key C β†’ G β†’ A β‡’ βœ… C determines A F β†’ E β‡’ βœ… Given DE β†’ F β‡’ βœ… Given G β†’ B β‡’ ❌ False (no path from G to B) Final Answer: The false statement is: "G β†’ B" or "AB is a candidate key" β€” both are false.

    Practice Next
    More IT Networking Questions
    ask-question