0 votes 0 votes Which of the following is correct ? I.Two phase locking is an optimistic protocol. II. Two phase locking is pessimistic protocol III. 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 Databases two-phase-locking-protocol databases transaction-and-concurrency + – bts asked Jun 30, 2018 bts 1.2k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes validation protocol is optimistic protocol while locking and timestamps are pessimistic protocols. so ii and iv. are correct. Harshitkmr answered Dec 21, 2019 Harshitkmr comment Share Follow See all 0 reply Please log in or register to add a comment.