What is a zombie? A zombie is an entry in the The entry records the information needed by a call to table of a terminated process.

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A: The above question is solved in step 2 :-

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A: The above question is solved in step 2 :-

Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.