Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication architectures‚ and wireless networks‚ — Learn TCP/IP and protocol
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Firewall Quiz 1. A(n) hub____ is a standard network device for connecting multiple Ethernet devices together by using twisted-pair copper or fiber-optic cables in order to make them function as a single network segment. 2. A(n) Router____ is a network device that can forward packets across computer networks. 3. A(n) Proxy server____ is a computer or an application program that intercepts a user request from the internal secure network and then processes that request on behalf of the user. 4.
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1.0. Introduction Over the last few years‚ Wireless Local Area Networks (WLANs) have gained strong popularity in a number of vertical markets‚ including health-care‚ retail‚ manufacturing‚ warehousing‚ and academic areas. These industries have profited from the productivity gains of using hand-held terminals and notebook computers to transmit real time information to centralized hosts data processing [1]. Wireless communications offer users and organizations many benefits such as portability
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The company GMA Network‚ Inc. is a Filipino media conglomerate based in Diliman‚ Quezon City‚ Philippines. It is primary involved in radio and television broadcasting‚ with subsidiaries dealing in various media related businesses. The majority of its profits are derived from publicity and marketing incomes associated to television distribution. The company has 47 VHF and 13 UHF television stations‚ including its flagship station in Metropolitan Manila and originating stations in the provinces that
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3 The Roman Empire 4 Medieval Europe 4 Early Modern Era 5 John Loudon McAdam 6 The 20th Century 6 History of the Road Transportation Network 1794. You may ask‚ what is the significance of this date? In 1974‚ the first modern road transportation network was established in Great Britain‚ allowing the first mail coach service between Bristol and London that ran on a timetable. However‚ roads have been around for centuries. So how is this relatively
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Computer Networks Does anyone really know what networking is? “In the world of computers‚ networking is the practice of linking two or more computing devices together for the purpose of sharing data” (Networking Fundamentals). Now this is a great explanation but does this really help us understand? Networking has grown over many years. Where did networking come from? Lets go back to the beginning and find out how far we have come. Network research can be traced back to around the 1960’s.
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BUTTERFLY NETWORK Butterfly network is a network with 2q nodes and q + 1 columns as an unfolded q-cube in order to facilitate the discussion‚ visualization‚ and analysis of hypercube routing algorithms. However‚ a butterfly network can be viewed as a parallel processing architecture in its own right. A butterfly architecture (Fig. A‚ left) has p = 2 q(q + 1) processors of maximum degree d = 4‚ a diameter of 2q = ∪(log p)‚ and a bisection width of ( – 1)2 q+1 + 0(2 q) = ∪(p/log p). A wrapped
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Network Design Companies have issues when designing a network that provides access to data and information in a safe and secure environment. A small retail chain store Kudler Fine Foods sells various products and is upgrading the network to monitor and secure information. Kudler Fine Foods has three locations and needs to communicate data quickly so that customer’s accounts are updated and stores can manage inventory. The central network server is located at the home office in La Jolla‚ California
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Competitive strategies: Global vs. local © Professor Daniel F. Spulber Global competitive strategies The G5 Platform strategy Network Strategy Intermediary strategy Entrepreneur strategy Investment strategy 2 Global competitive strategies • Home‚ supplier‚ partner‚ and customer countries of competitors – differences as sources of competitive advantage • Differences in global value connection • Differences in products‚ brand‚ technology • Differences in impacts of political‚ legal and
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Network Administrator PROPOSAL The purpose of this research is to provide a detailed insight into the job duties and responsibilities of a network administrator. Early on‚ I developed a strong interest in computers. Therefore‚ in high school‚ I began taking classes to assist me in a computer career. At the time‚ I was not certain as to which aspect I would pursue. However‚ I knew it would be working with computers. Nevertheless‚ it was not until college that I determined that I wanted to
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