Network Server

Question 1
Suppose that all of problem parameters are the same as before except the arrival
rate, , which increases to 25/minute. To provide the same level of service, i.e., average
latency of no more than 20 milliseconds, what is the optimum number of servers
required?

Question 2
We Suppose that all of problem parameters are the same as before except the arrival
rate, , which increases to 25/minute. To provide the same level of service, i.e., average
latency of no more than 20 milliseconds, what is the utilization at this optimum
solution?

Question 3
Suppose that all problem parameters are the same as before except the arrival rate, ,
which increases to 40/minute. To provide the same level of service, i.e., average
latency of no more than 20 milliseconds, what is the optimum number of servers
required?

Question 4
Suppose that all problem parameters are the same as before except the arrival rate, ,
which increases to 40/minute. To provide the same level of service, i.e., average
latency of no more than 20 milliseconds, what is the utilization at this optimum
solution?

Question 5
Examining the solution to the example discussed in the lecture and to the 4 questions
above, what can you say about the impact of scale on the design and performance of
any system? Please provide a short response in less than 150 words.

Question 6
Suppose that all problem parameters are the same as before except the arrival rate, ,
which is back to 20/minute. However, now, suppose that the service level target has
tightened to an average latency of no more than 10 milliseconds. What is the optimum
number of servers required?
Question 7
Suppose that all problem parameters are the same as before except the arrival rate, ,
which is back to 20/minute. However, now, suppose that the service level target has
tightened to an average latency of no more than 10 milliseconds. What is the
utilization at this optimum solution?

Question 8
Examining the solution to the example discussed in the lecture and to the two
questions above, what can you say about the impact of target service level on the
design and performance of any system? Please provide a short response in less than
150 words.