The correct answer is A. Execution Time.
Execution time is the amount of time it takes for a computer to execute a program or command. It is measured in milliseconds or microseconds. The execution time of a program depends on the complexity of the program, the speed of the computer, and the amount of data that needs to be processed.
Delay time is the amount of time between when a request is made and when the response is received. It is measured in seconds or minutes. The delay time depends on the speed of the network, the load on the server, and the distance between the client and the server.
Real time is a term used to describe a system that responds to events as they occur. In a real-time system, there is no delay between the event and the system’s response. Real-time systems are used in applications such as air traffic control, medical imaging, and industrial control.
Waiting time is the amount of time that a job spends waiting to be processed. It is measured in seconds or minutes. The waiting time depends on the number of jobs in the queue and the speed of the computer.
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