Consider the following schedules:
S1: R2(A),R1(C),R2 (B),W2 (B),R3(B),R1(A),R3(C),W3 (C),W1(A)
S2: R2(A),R1(C),R2 (B), R3(B),W2(B) , R1(A),R3(C),W3 (C),W1(A)
Which of the above schedule is/are conflict serializable?
1
S1 only
2
S2 only
3
Both S1 and S2
4
Neither S1 nor S2
5
Question Not Attempted