nptel

Question

Consider the following schedule $S$.

 

S: l1(A),l3(D),l1(B),u1(A),l2(C),l2(B),l1(D),l2(B),l3(C),l4(A),l4(C),l5(A);

 

Which of the following is a valid set of transactions that are potential victims?

 

 

1. {T1,T2,T3,T5}

 

2. {T1,T2}

 

3. {T1,T2,T3,T4}

 

4. {T1,T2,T3}