Week2 Itm130 Essay

5126 words - 21 pages

CHAPTER 4

1. Why is a focus on information systems insufficient in networking?

Because the network professionals often has to focus on the broader business system in which the information system is embedded.

2. Compare trends in network demand and network budgets.

The network demand is likely to grow rapidly in the future, just as it has always done in the past. The network budgets are growing very slow

3. What are QoS metrics? (Do not just spell out the acronym.)

QoS metrics stands for quality-of-service metrics that is metrics that is quantitative measures of network performance. For instance, companies use QoS metric to quantify their quality of service so ...view middle of the document...

b. What is downtime?

The percentage of the time that the network is not available

c. What are the “five nines”?

The availability target is 99.999%. Data networks generally have lower availability but are under pressure to improve their availability given the cost of network downtime to firms today.

d. What are packets?

Host send data in small messages called packets.

e. When should error rates be measured? Why?

Error rates should be measured when network is overload, error rates can soar because the network has to drop the packet it cannot handle.

f. What is latency?

Latency is the amount of delay measured in milliseconds.

g. In what units is latency measured?

Measured in milliseconds

h. What is jitter?

Jitter occurs when the latency between successive packets varies.

i. For what applications is jitter a problem?

Make voice sound jittery.

7.

a. What are service level agreements?

Contracts that guarantee levels of performance for various metrics such as speed and availability. If a service does not meet the SLA guarantees, the service must pay a penalty to its customer.

b. Does an SLA measure the best case or the worst case?

Yes. Service will be no worse than a specific number.

8. Do a three-site traffic analysis. Site X attaches to Site Y, which attaches to Site Z. Site X is 130 meters east of Site Y. Site Z is 180 meters west of Site Y. Site X needs to be able to communicate with Site Y at 3 Gbps. Site Y needs to be able to communicate with Site Z at 1 Gbps. Site X needs to be able to communicate with Site Z at 700 Mbps. Supply your picture giving the analysis. You may want to do this in Office Visio or Windows Draw and then paste it into your homework. (Tip. Check page 151)

a. What traffic capacity will you need between Sites X and Y?

(700Mbps + 3Gbps) = 462.5 Mbps

b. Between Y and Z?

(700Mbps + 1Gbps) =212.5Mbps
[pic]

9. What is the purpose of redundancy in transmission lines?

To provide backup paths in case another line fails.

a. If the line between R and S fails in Figure 4-11, how much capacity will the line between Q and S need?

(300Mbps + 2Gbps) = 287.5Mbps
[pic]

b. What about the line between Q and R?

(300Mbps + 2.04500Gbps) = 293.125000 Mbps

10.

a. What is a network topology?

Refers to the physical arrangement of network’s computers, switches, routers, and transmission line.

b. At what layer do we find topologies?

Physical layer concept

11.

a. What is the advantage of a full-mesh leased line network?

Provides direct connections between every pair of sites. It provides many redundant paths so that if one site or leased line fails, communication can continue unimpeded.

b. What is the disadvantage?

Prohibitively...

Other assignments on Week2Itm130

Course Syllabus Essay

2610 words - 11 pages [pic] COURSE SYLLABUS Semester: Fall, Year: 2012  College Mission Statement Richard J. Daley College provides high-quality education which leads to academic success, career development, and personal enrichment that fulfill diverse community needs. Mathematics Department Mission Statement Our mission is to deliver excellent service and to provide learning opportunities by offering a wide range of mathematics courses, which will help our

Management Essay

1477 words - 6 pages Boeing Management Planning Heather Oetzel MGT 330 October 22, 2012 Joe Cheng Abstract Boeing is known as “the world’s leading aerospace company and the largest manufacturer of commercial jetliner and military aircraft combined ("The Boeing Company: About Us", 2012). Every company uses different types of management techniques including how the planning function of management is used. Planning allows organizations to develop how the

Assisted Suicide

1015 words - 5 pages Should physician-assisted suicide be legal? While I believe if one chooses to end his or own life through physician assistance for reasons that they chose, the choice should be up to the individual. Physician-assisted suicide should be at one's discretion. “Assisted Suicide, also called Voluntary Euthanasia, is currently a contentious issue in many countries. Because Euthanasia is legal in a few modern democracies: the Netherlands, Belgium

Tanglewood Case 1

797 words - 4 pages Tanglewood’s staffing strategy requires the organization to make key decisions about the acquisition, deployment, and retention of the organization’s workforce. In order to accomplish this, Tanglewood’s must make thirteen decisions regarding its staffing levels and its staffing quality. One of the first decisions that Tanglewood needs to choose is to acquire or develop talent. Tanglewood should try to develop their current talent because one

Nnnnn

1391 words - 6 pages Есе по въпроса: Кои от всички „действащи” лица могат да се разглеждат като морално отговорни и в какво именно? по казуса Форд „Пинто” Корпоративните злодеяния са нанесли повече вреди на обществото от всички улични престъпления взети заедно. Според данни на ФБР сумата от уличните престъпления възлиза на $3.8 млрд. годишно, а загубите от корпоративните измами между $100 млрд. и $400 млрд. годишно

The Penis

1052 words - 5 pages The short story ”The Penis” is written by Hanif Kureishi. The short story is about a penis, which has been separated from its owner Doug, who we hear from later on. At first though we hear about a guy called Alfie who was “a cutter – a hairdresser – and had to get to work”. He is having breakfast with his wife, when she asks him what he did last night, and if he had a good time last night? Alfie can not remember what he did last night, he then

Managed Care Paper

543 words - 3 pages Managed Care and Case Management Care Marvin Lloyd BSHS/402-Case Management 27 August 2012 Virgil Miller Managed Care are techniques employed to help reduce the cost for providing health benefits and a system for improving organizations quality of care

Media

439 words - 2 pages The life expectancy is lower; so people are not kept alive with drugs for decades in a virtual sleep state. There is less state education; so kids don't have it drilled into them that their only goal in life is to make money, at the cost of 'everything' else. The health care is less; so diseases, usually brought by Westerners, kill many more than they do in countries where drug companies can make a fortune from selling medicines that aren't

Chapter 6 International Business

7113 words - 29 pages CGGGG The Political Economy of International Trade Chapter Outline OPENING CASE: Why Are Global Food Prices Soaring? INTRODUCTION INSTRUMENTS OF TRADE POLICY Tariffs Subsides Country Focus: Subsidized Wheat Production in Japan Import Quotas and Voluntary Export Restraints Local Content Requirements Administrative Polices Antidumping Policies Management Focus: U.S. Magnesium

Scope And Goals

279 words - 2 pages Introduction: Kudler Fine Foods is a specialty food store based in San Diego, California with its three locations in La Jolla, Del Mar, and Encinitas. Kudler Fine food prides itself on offering fresh and organic products that are carefully selected from local farmers and around the world. The organization has recently taken the initiative to start a Frequent Shopper Program to market and increase sales. This program will offer the customers a

Meerkat

251 words - 2 pages Meerkat The meerkat or suricate, Suricata suricatta, is a small mammal belonging to the mongoose family. Meerkats live in all parts of theKalahari Desert in Botswana, in much of the Namib Desert in Namibia and southwestern Angola, and in South Africa. A group of meerkats is called a "mob", "gang" or "clan". A meerkat clan often contains about 20 meerkats, but some super-families have 50 or more members. In captivity, meerkats have an average

Similar Documents

Mgt216 Essay

714 words - 3 pages The first ethical issue presented in the ethics game simulation was whether to warn consumers about the contaminated product and what information to provide consumers about the contaminant. The second ethical issue was whether to sell a product that does not meet U.S. safety requirements in a foreign market that has lower safety restrictions. G-BioSport was not required to meet prior approval from the Federal Drug Administration before they

Economy Effect Of Marijuana Essay

277 words - 2 pages Modern American History by Alan Renga 2nd Mid Term! You will be given 3 Short Essay questions and 20 Multiple Choice questions deriving from this list! 80 points total! The 1920s Warren Harding then Calvin Coolidge Tea Pot Dome 1st Red Scare Immigration Restriction, Sacco and Vanzetti Langston Hughes, Marcus Garvey, KKK Prosperity, advertising Prohibition, Al Capone Flappers, Clara Bow, Rudolph Valentino Babe Ruth, Jack Dempsey

The Vc Shakeout Essay

2033 words - 9 pages ECONOMY 26 Luring a big firm to town is not the secret to job growth DEFEND YOUR RESEARCH 30 Are morning people wired for success? VISION STATEMENT 32 The social web’s east-west divide COLUMN 38 Warren Bennis looks back on his surprising path to fame New Thinking, Research in Progress hbr.org New Thinking, Research in Progress hbr.org FIRST The VC Shakeout Venture capital hasn’t worked for a decade and must be radically

Hospitals Paper

6014 words - 25 pages I hope to provide in this paper a comprehensive understanding for what the term “hospital” has become. Hospitals are an extremely complex system that man has created and shaped and reshaped throughout history. My goal in writing and researching this paper will be to provide those who read it a clear understanding on how the hospital system got to where it is today, and to shed some light on the many organizations that affiliate with and