Databases Systems (Concorrency Control) 1. Consider the 2-PL (Two-phase locking) protocol and add the operators X-lock(_), S-lock() and Unlock(_). Is there a possibility of deadlock"? Justify the answer. T2 T1 R(B) R(A) W(A) R(A) R(B) W(A) Use the following table : T1 with locks/unlocks T2 with locks/unlocks Justification