Let us assume that transaction T1 has arrived before transaction T2. Consider the scheduleS=r1(A); r2(B) ; w2(A); w1(B)Which of the following is true?

Not allowed under basic timestamp protocols because T2 is rolled back,

Allowed under basic timestamp protocol.

Not allowed under basic timestamp protocols because T1 is rolled

Let us assume that transaction T1 has arrived before transaction T2. C

1.	Let us assume that transaction T1 has arrived before transaction T2. Consider the scheduleS=r1(A); r2(B) ; w2(A); w1(B)Which of the following is true?
A.	Allowed under basic timestamp protocol.
B.	Not allowed under basic timestamp protocols because T1 is rolled
C.	Not allowed under basic timestamp protocols because T2 is rolled back,
D.	None of these
Answer» C. Not allowed under basic timestamp protocols because T2 is rolled back,

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Let us assume that transaction T1 has arrived before transaction T2. Consider the scheduleS=r1(A); r2(B) ; w2(A); w1(B)Which of the following is true?

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