Q51

Consider the following two phase locking protocol. Suppose a transaction $T$ accesses (for read or write operations), a certain set of objects $\{O_1,\ldots,O_k \}$. This is done in the following manner: $\text{Step 1}$. $T$ acquires exclusive locks to $O_1,\ldots,O_k$ in increasing order of their addresses. $\text{Step 2}$. The required operations are performed . $\text{Step 3}$. All locks are released This protocol will