Screen. 1 20 Subject: Time : 1 Hour 45 minutes Note: Q. 1 is compulsory. Q1 (5*3=15) JAM) - SB (a) The following functional dependencies are given: AB CD, AF D, DE F,C G,F EG A Verify the following and state if true or false. i. {CF}* = {ACDEFG} ii. {AE }* = {ACDEFG} What is a candidate key for the relation R(A, B, C, D, E, F, G) (b) For the relation R(A, B, C, D) and FD set: {A B, ABC, CD, can we derive i. A ii. BD BCD (c) Show that ABis a relationship A:B::N:1