QUESTION 1 Which of the following is true about Concurrency Architecture? 1.The concurrency architecture identifies the threads of execution, the allocation of software elements to those threads, specifies how the threads will be scheduled, and defines how resources will be shared among them. 2.A platform (Operating System plus hardware) specialized for running multi-treaded applications 3.Another term for multi-processing, system with more than one CPU 4.Special hardware architecture needed to perform multi-threading

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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.