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2) (30 pts) Consider the transaction schedules S1 and S2 below: S1 R1(X); R2(Y); W1(Y); W2(Z); R3(Z); W3(X) S2-RI (A): R3(B): W? (A): R2(C); R2(A);
2) (30 pts) Consider the transaction schedules S1 and S2 below: S1 R1(X); R2(Y); W1(Y); W2(Z); R3(Z); W3(X) S2-RI (A): R3(B): W? (A): R2(C); R2(A); W3(B): w2(A): R3(A); RI (B): W2(C); wi (B) For each schedule- a) Draw the precedence graph b) State whether the schedule is conflict serializable. c) If it is conflict serializable, provide the serial schedule or if it is not, briefly explain why
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