Final answer:
The Correct option is: D. Service, arrival
Utilization in the queuing model can be calculated as service time divided by arrival time.
Step-by-step explanation:
The queuing model is used to study waiting times in a system where customers arrive and are served. Utilization in the queuing model refers to the percentage of time that a server is busy.
It can be calculated as the service time divided by the arrival time. Therefore, the correct answer is D. Service, arrival.
Utilization in a queuing model is typically calculated as the ratio of service time to arrival time. Therefore, the correct option is:
Queueing systems are simplified mathematical models to explain congestion. Broadly speaking, a queueing system occurs any time ‘customers’ demand ‘service’ from some facility;
usually both the arrival of the customers and the service times are assumed to be random. If all of the ‘servers’ are busy when new customers arrive, these will generally wait in line for the next available server.
Simple queueing systems are defined by specifying the following (a) the arrival pattern, (b) the service mechanism, and (c) queue discipline.
From the probabilistic point of view, properties of queues are usually derived from the properties of stochastic processes associated with them. However, in all but the simplest queues, determination of the state probabilities is extremely difficult.