EX-03 CHAPTER 3- Exercises Solutions 1. Baseband transmission means sending a digital or an analog signal without modulation using a low-pass channel. Broadband transmission means modulating a digital or an analog signal using a band-pass channel. 2. Optical signals have very high frequencies. A high frequency means a short wavelength because the wavelength is inversely proportional to the frequency ( = c/f)‚ where c is the propagation speed in the media. 3. The frequency domain of a voice signal
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topology. Diagram of tree topology. Page 4: Hardware and software required. Communications mediums and protocols. Page 5: Advantages and disadvantages for staff. Page6: Advantages and disadvantages for learners. Social and ethical implications. Page7: Security of network. Bibliography. Diagram of a Tree topology layout: About a Tree topology: Tree Topology Tree topologies integrate multiple
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world’s largest social networking service that helps people communicate more efficiently with their friends‚ family‚ and coworkers. In 2012‚ according to The New York Times‚ Facebook has more than 800 million active users around the world. The public favours Facebook as a way to “keep in touch with friends;” however‚ people‚ especially the younger generations‚ have become strongly attached to Facebook without realizing its negative effects. In fact‚ people who advocate the use of the social network are
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of marriage Arranged marriage- a marriage arranged by the families of the couple Shotgun marriage- a marriage forced or required because of pregnancy. Marriage of convenience- A marriage or joint undertaking arranged for political‚ economic‚ or social benefit rather than from personal attachment. Elope- to run off secretly to be married‚ usually without the consent or knowledge of one’s parents. kinship term Manogamy - single marriage of one man and one woman. polygamy- The practice or custom
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Counter argument Do you know that social networking as facebook doesn’t always make us sad and gloomy? As a new study based on virility of emotions between friends shows that positive emotions have stronger spreading power on facebook than negative ones. In the article "can facebook make you sad "written by "Justin Mullins" he discussed the idea that facebook make us sad and lonely. He also described the idea that facebook has changed the world and life completely. Although the author mentioned
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Smoking should be banned from public places. Studies show that smoking can lead to cancer. Not only does this put the smoker’s life at risk‚ it also affects the lives of non-smokers‚ including pregnant women. Smoking all together is a dangerous thing to do. It began thousands of years ago with the use or tobacco in South America (Libal 11). No one knew about the long-term health effects of smoking tobacco before the twentieth century. It was decades of cigarette use before society began to realize
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In Molly Ivins says to simply “Ban the damn things. Ban them all.” Her solution is to “Get a dog.” In this essay I will debate for and against gun control What do we really need guns for? Protection? In a world with guns many people feel that because they can’t beat them they might as well join them. If you were confronted by someone in a dark alley with a gun‚ wouldn’t you like to have one as well to make it an even fight? You need guns to protect yourself‚ but if we all didn’t have guns we would
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their behavior should be different. In this assignment it is whereby networkings is to be explained‚ clarified and analyze the importance of networking‚ not forgetting to outline how networking skills can be improved in order to implement strategies to solve problems. While the concept of a networking in multi-cultural organization has been well-documented‚ what takes the model to a new level today are the capabilities enabled by social media applications and intelligent networks. At its core‚ the Dynamic
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Nancy Gupton for National Geographic News Published February 27‚ 2010 A tsunami can kill thousands of people and level entire blocks in mere seconds. See how much you know about these walls of water (tsunami safety tips). (Related: "Tsunami Warning for Hawaii After Huge Chile Earthquake.") 1. What can cause a tsunami? a. Landslide b. Underwater earthquake c. Volcanic eruption d. All of the above 2. Do all undersea earthquakes trigger a tsunami? a. Yes b. No 3. What does the word "tsunami"
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Mobile Computing and Social Networking | Duane BaskinProfessor Dr. CulverRTP Campus | CIS 500 – Information Systems for Decision Making | 9/7/2013Strayer University | | | I. Introduction. There are thousands of applications that have been developed for mobile devices which perform a myriad of tasks and processes. In the beginning most of these applications were games. Businesses later joined the mobile revolution and developed their own business based applications to run on these
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