A steady-state exist in a queue if:

If the operating characteristics of a queue are dependent on time, then is said to be:

A person who leaves the queue by losing his patience to wait is said to be

The characteristics of a queuing model are independent of

The unit of traffic intensity is:

The queue discipline in stack of plates is:

Office filing system follows:

SIRO discipline is generally found in:

The designation of Poisson arrival, Exponential service, single server, and limited queue selected randomly is represented by:

For a simple queue $\left(M/M/1\right), \rho =\frac{\lambda }{\mu }$   is known as