1. All the nodes must be connected in which of the following techniques?

Minimal-flow
Maximal-spanning tree
Shortest-route
Maximal-flow
Minimal-spanning tree

2. The origin or beginning node in a network is called __________.

Home
Delta
Source
Mouth
Sink

3. In queuing theory, the calling population is another name for __________.

The queue size
The servers
The arrivals
The service rate
The market researchers

4. Which of the following is not an assumption in common queuing mathematical models?

Arrivals come from an infinite, or very large, population.

Arrivals are Poisson distributed.
Arrivals are treated on a first-in, first-out basis and do not balk or renege.
Service rates follow the normal distribution.
The average service rate is faster than the average arrival rate.

5. Lines at banks where customers wait for a teller window are usually representative of a

Single-channel, multiphase system.
Single-channel, single-phase system.
Multichannel, multiphase system.
Multichannel, single-phase system.
None of the above

6. In queuing analysis, total expected cost is the sum of expected __________ plus expected __________.

Service costs; arrival costs
Facility costs; calling costs
Calling cost; inventory costs
Calling costs; waiting costs
Service costs; waiting costs

7. A vendor selling newspapers on a street corner is an example of a:

Single-channel, multiphase system.
Single-channel, single-phase system.
Multichannel, multiphase system.
Multichannel, single-phase system.
None of the above is correct.