Question 18

If your 1-server system is too busy, is it better to (A) add a second (identical) server or (B) to enable your one server to serve twice as many customers per unit of time?

Group of answer choices

It depends on your objectives

Both options -- A & B -- are equally good

A) Add a second server

B) Enable server to work twice as fast

Question 19

A queueing system with Markovian interarrival times and service times has three servers. On average, each server can serve a customer in 18 minutes. Customers arrive on average every 11 minutes. There is no balking and no reneging, but jockeying is permitted. Some customers go through the line twice. What is c?

Group of answer choices

Impossible to tell from this information

c = 3

c = 1

c = 0