Question: Consider Figure 2. 12, for which there is an institutional network connected to the Internet. Suppose that the average object size is 850,000 bits and

Consider Figure 2. 12, for which there is an institutional network connected to the Internet. Suppose that the average object size is 850,000 bits and that the average request rate from the institution's browsers to the origin servers is 16 requests per second. Also suppose that the amount of time it takes from when the router on the Internet side of the access link forwards an HTTP request until it receives the response is three seconds on average (see Section 2.2.5). Model the total average response time as the sum of the average access delay (that is, the delay from Internet router to institution router) and the average Internet delay. For the average access delay, use Δ/( I - Δβ), where ~ is the average time required to send an object over the access link and β is the arrival rate of objects to the access link.
a. Find the total average response time.
b. Now suppose a cache is installed in the institutional LAN. Suppose the miss rate is 0.4. Find the total response time.

Step by Step Solution

★★★★★

3.41 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The time to transmit an object of size L over a link or rate R is LR The average time is t... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

899-CS-CN (470).docx

120 KBs Word File

Students Have Also Explored These Related Computer Network Questions!

(a) What is an octet? (b) What is a host? (c) Is a home PC connected to the Internet a host? (d) Distinguish between the terms internet and Internet.

Suppose that a flow network G = (V, E) violates the assumption that the network contains a path s t for all vertices V. Let u be a vertex for which there is no path s u t. Show that there must...

Consider an organization with which you frequently interact, such as a bank, credit card company, university, or insurance company, from which you receive several computer-generated messages, such as...

Computer networking : 3 questions please write steps/break down Q1) for which there is an institutional network connected to the internet. Suppose that the average object size is 750000 bits and that...

Computer networking : 3 questions Q1) for which there is an institutional network connected to the internet. Suppose that the average object size is 750000 bits and that the average request rate from...

Problem 1: Consider the following figure, for which there is an institutional network connected to the Internet. Suppose that the average object size is 1,500,000 bits and that the average request...

Question 5 (8p) P9 on page 175 (Revised). Consider the figure below,for which there is an institutional network connected to the Internet. Suppose that the average object size is 850,000 bits and...

Parts 28, 29, and 30 Consider the figure below, for which there is an institutional network connected to the Internet. Suppose that the average (upload or download) object size is 1 Mbytes. Also...

Question 4 (10p) P9 on page 170 (Revised). Consider the figure below, for which there is an institutional network connected to the Internet. Suppose that the average object size is 850,000 bits and...

HW#2 RIl. Why do HTTP, FTP, SMTP, and POP3 run on top of TCP rather than on UDP? R13. Describe how Web caching can reduce the delay in receiving a requested object. Will Web caching reduce the delay...

It was May 2017 when Neeraj Kumar, the owner of Kumar Food Corporation (KFC), held a brainstorming session with his marketing and sales team to find ways of increasing the value of his company to...

Describe the six time value of money elements.

Chris puts $5200 into a certificate of deposit (CD) account at a simple interest rate of 4 % per year. Answer the following, a. How much interest will Chris earn in 1 year? b. How much money will...

Multiple bar Graph. What is a multiple bar graph, and how is it helpful?

A regional telephone company has 10 million subscribers. Each of their telephones is connected to a central office by a copper twisted pair. The average length of these twisted pairs is 10 km. How...

Is an oil pipeline a simplex system, a half-duplex system, a full-duplex system, or none of the above?

The cost of a fast microprocessor has dropped to the point where it is now possible to put one in each modem. How does that affect the handling of telephone line errors?

Assuming the following cash flows and a required rate of return of 1 1 % , should this project be accepted ( based on your previous calculations ) ? Explain in detail. e Syllabus es sions Type your...

Firm P/B Forecasted ROE A 10% B 2 12% C 1 9% Based on the information above, which of the following statements is most likely to be correct? Select one: O a. Company B is overvalued relative to...

6. Write the MIPS assembly code that corresponds to the pseudo code below. Assume that the address for integer i is baseaddress +4 and the address for a[0] is baseaddress +8. Assume that the...