A post office has a single line for customers waiting for the next available postal clerk.There are two postal clerks who work at the same rate.The arrival rate of customers follows a Poisson distribution, while the service time follows a normal distribution.What type of queuing model applies here?
A)M/M/2
B)M/D/2
C)M/D/1
D)M/G/2

Question

Quizplus · Accepted Answer

The given queuing system has a single waiting line and two servers who work at the same rate. Therefore, it is a Multiple Server Queuing System, denoted by M. 
The arrival rate of customers follows a Poisson distribution, denoted by M/M. 
The service time follows a normal distribution, which is denoted by G. 
Since there is only one waiting line, the system configuration is D=1. 
The complete queuing system can be represented as M/G/2/K, where K represents the capacity of the waiting line (which is assumed to be infinite in this case). 
Therefore, the best choice for this queuing model is option D) M/G/2.

A Post Office Has a Single Line for Customers Waiting