Which of the following is correct?I. Two phase locking is an optimisti – McqOptions

MCQOPTIONS

1.	Which of the following is correct?I. Two phase locking is an optimistic protocol.II. Two phase locking is pessimistic protocolIII. Time stamping is an optimistic protocol.IV. Time stamping is pessimistic protocol.
A.	I and III
B.	II and IV
C.	I and IV
D.	II and III
Answer» D. II and III

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