What rule applies to the two-phase locking protocol?
A) Two transactions cannot have conflicting lock.
B) No unlock operation can precede a lock operation in a different transaction.
C) No data is affected until all locks are released.
D) No data is affected until the transaction is in its locked position.

Question

Quizplus · Accepted Answer

Two-phase locking protocol ensures that two transactions cannot have conflicting locks, which helps maintain consistency and prevent deadlocks.

What Rule Applies to the Two-Phase Locking Protocol