Problem 1: Consider the following figure, for which there is an institutional network connected to the...
Fantastic news! We've Found the answer you've been seeking!
Transcribed Image Text:
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 rate from the institution's browsers to the origin servers is 9 requests per second. Also suppose that the Internet delay (i.e., 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. Assuming that the network delay within the institutional network is small enough to be ignored (i.e., zero delay), the total origin servers average response time is thus modeled as the sum of public Internet the average access delay (i.e., the delay from Internet router to institution router) and the average Internet delay. The average access delay can be calculated by A/(1 - A B), where A is the average time required to 15 Mbps access link send an object over the access link (i.e., the institutional network 100 Mbps LAN transmission delay for an object to be sent over the access link) and B is the arrival rate of objects to the access link. a. Calculate the total average response time. b. Now suppose a web cache is installed in the institutional LAN. Suppose the miss rate is 0.4. Calculate the total average response time. 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 rate from the institution's browsers to the origin servers is 9 requests per second. Also suppose that the Internet delay (i.e., 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. Assuming that the network delay within the institutional network is small enough to be ignored (i.e., zero delay), the total origin servers average response time is thus modeled as the sum of public Internet the average access delay (i.e., the delay from Internet router to institution router) and the average Internet delay. The average access delay can be calculated by A/(1 - A B), where A is the average time required to 15 Mbps access link send an object over the access link (i.e., the institutional network 100 Mbps LAN transmission delay for an object to be sent over the access link) and B is the arrival rate of objects to the access link. a. Calculate the total average response time. b. Now suppose a web cache is installed in the institutional LAN. Suppose the miss rate is 0.4. Calculate the total average response time.
Expert Answer:
Answer rating: 100% (QA)
a The time to transmit an object of size L over a link or rate R is LR The average time is ... View the full answer
Related Book For
Computer Networking A Top-Down Approach
ISBN: 978-0136079675
5th edition
Authors: James F. Kurose, Keith W. Ross
Posted Date:
Students also viewed these computer network questions
-
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...
-
By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 5 seconds. a. How many...
-
The length of time it takes to play a Major League Baseball game is of interest to many fans. To estimate the mean time of game, a random sample of 48 National League games was identified and the...
-
(a) Find the first order fraction transformation where z 1 =,z 2 =0, z 3 =1 is thought to be w 1 =1, w 2 =i, w 3 =-1 each. (b) Find the anchor points of w=(z-1)/(z+1)
-
Using the Hotel schema, assume the following indexes exist:
-
A desktop computer is to be cooled by a fan. The electronic components of the computer consume 80 W of power under full-load conditions. The computer is to operate in environments at temperatures up...
-
Evergreen Company's 2020 reconciliation between pretax GAAP income and taxable income is as follows. Pretax GAAP income.. Depreciation adjustment. Permanent difference. Taxable income.. $ 200,000...
-
Using the network above and the additional information below, find: (a) The crash cost per day (b) Which activities should be crashed to meet a project deadline of 13 days at minimum cost. Assume...
-
A company is considering investing in four bonds; $1 million isavailable for investment. The expected annual return, theworst-case annual return on each bond, and the duration of eachbond are given 0...
-
Drago Company produces a line of brass-based products, one of which is a flow control valve (for regulating the flow of water). The production of this valve requires the use of specialized equipment...
-
Can you help? . The Bradley Corporation produces a product with the following costs as of July 1, 20X1: Material $4 per unit Labor 4 per unit Overhead 2 per unit Beginning inventory at these costs...
-
The loan will have a term of 5 4 months and monthly payments of $ 3 8 5 . 1 3 . The interest rate on the loan is 8 . 8 4 % compounded quarterly. What is the amount of money that was borrowed?
-
if they want to pay $12,500 per year for fours years to pay for Jon's college, how much do they need to fund that. he is 16 years old and will go go college at age 18 for four years. If they started...
-
What are the latest advancements in process intensification for reducing reactor size while maintaining high production rates, and how do they impact sustainability in chemical manufacturing ?
-
The Corner Art Gallery purchased a painting for $68,000 two years ago. Today, the painting was resold for $179,900. What annual rate of return did the gallery earn on this painting?
-
2. Consider an infinite sheet of charge with charge density in the z - 0 direction with a speed v: I K y plane. The charge uniformly moves in the y Y You can think of this as a steady surface current...
-
First, compose a full paragraph that describes the organization.Be sure to include the name of your company, the product (orproducts) or services that it provides, and who your intendedcustomer bas 2...
-
Rosalie owns 50% of the outstanding stock of Salmon Corporation. In a qualifying stock redemption, Salmon distributes $80,000 to Rosalie in exchange for one-half of her shares, which have a basis of...
-
Can you "decrypt" a hash of a message to get the original message? Explain your answer.
-
In the text we have used the term connection-oriented service to describe a transport-layer service and connection service for a network-layer service. Why the subtle shades in terminology?
-
In this problem we consider sending real-time voice from Host A to Host B over a packet-switched network (VoIP). Host A converts analog voice to a digital 64 kbps bit stream on the fly. Host A then...
-
Question: Edward lives on a ranch near Wind River. He uses water from the river for irrigation. To divert more water to his ranch, he builds a dike in the river using scrap metal, cottonwood trees,...
-
1. In 1944, W. E. Collins conveyed land to the Church of God of Prophecy. The deed said: "This deed is made with the full understanding that should the property fail to be used for the Church of God,...
-
2. CPA QUESTION On July 1, 1992, Quick, Onyx, and Nash were deeded a piece of land as tenants in common. The deed provided that Quick owned half the property and Onyx and Nash owned one quarter each....
Study smarter with the SolutionInn App