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GATE | GATE-CS-2016 (Set 1) | Question 61
Consider the following two phase locking protocol. Suppose a transaction T accesses (for read or write operations), a certain set of objects {O1,...,Ok}. This is done in the following manner:
Step 1. T acquires exclusive locks to O1, . . . , Ok in increasing order of their addresses.
Step 2. The required operations are performed.
Step 3. All locks are released.
This protocol will
(A)
guarantee serializability and deadlock-freedom
(B)
guarantee neither serializability nor deadlock-freedom
(C)
guarantee serializability but not deadlock-freedom
(D)
guarantee deadlock-freedom but not serializability
Answer
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