spite of the advantages afforded by social networking sites they can have potentially harmful effects. It is undeniable that social networks have a lot of advantages; still they also have several disadvantages. It is common knowledge that many people‚ especially young people‚ have heard about or belong to at least one social networking site. Social networks’ users rely on these sites to maintain their social relations and entertain themselves. It seems that these networking sites offer many advantages
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25 Network Theorems UNIT 2 NETWORK THEOREMS Structure 2.1 Introduction Objectives 2.2 Networks 2.2.1 Sign Convention 2.2.2 Active and Passive Elements 2.2.3 Unilateral/Bilateral Elements 2.2.4 Lumped and Distributed Networks 2.2.5 Linear and Non-Linear Elements 2.3 Superposition Theorem 2.3.1 Statement 2.3.2 Explanation of the Theorem 2.4 Thevenin’s Theorem 2.5 Norton’s Theorem 2.5.1 Statement 2.5.2 Explanation of the Theorem 2.6 Reciprocity Theorem 2.6.1 Statement and Explanation
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about the security risks involved. The use of ATM is on a rise and so is the number of crimes involved”. Having said that‚ it is very important for us as users to understand the benefits and vulnerabilities of present day ATMs’ security. Have you ever realized that the bridge between the hundreds and millions in your bank account and a system hacker is constructed by a thin layer of uncertain security issues of ATMs? A sound technical knowledge alone is enough for a hacker to rob you to the last
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Application of Security Countermeasures to Mitigate Malicious Attacks Learning Objective Describe how malicious attacks‚ threats‚ and vulnerabilities impact an IT infrastructure. Key Concepts Attacks‚ threats‚ and vulnerabilities in a typical IT infrastructure Common security countermeasures typically found in an IT infrastructure Risk assessment approach to securing an IT infrastructure Risk mitigation strategies to shrink the information security gap Reading
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COMMUNICATION NETWORK Communication network are large system distributed in wide area which are designed to send and receive information from one computer to another computer and this computers are called host. Network achieves this providing a set of rules which in terms of networking are called protocols. This protocols are set for communication which every host should follow and participate. The network is made up of two types of components: Nodes and
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You are the IT manager of an Elementary School. The school is adding computers that have been donated by a local company. An extended star topology has been suggested‚ using some hubs that are available. The school agrees with your idea of adding a switch working as a backbone switch‚ as shown in the figure below. The plan is to replace the classroom hubs as the budget allows. Scenario: For now‚ the very basic details are as follows: the Elementary School is a four-year-old‚ single-level building
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1. Introduction With the rapid development of new communications technology and network technology‚ some industries such as information industry show significant network externality characteristics. Network externality has been defined as "a change in the benefit‚ or surplus‚ that an agent derives from a good when the number of other agent consuming the same kind of good changes" (Liebowitz & Margolis‚ 1996). In other words‚ the product will be more valuable if more people use it. For example
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Packet Tracer iLabs and iLab Reports: 1. Make sure that you understand the objective of the lab(s) and the requirements for successfully performing them. 2. Use this Lab Report template for all of your labs. Do not turn in separate documents for each lab or create your own document! Each lab is easily identified within this document. Note: It is a good idea to read over this template before performing your labs‚ so that you know what to expect. 3. Follow all procedures in the
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switched telephone network (PSTN) and video broadcasting applications. However‚ with daily technology advancements made in society and the requirement for global data connectivity‚ satellites are increasingly being used to provide data communication links at all data rates ranging from 64 Kbps to 155 Mbps (Buchsbaum). Wireless technology allows data to be sent out into space to a satellite and back to earth to provide connectivity among many different network clients. The network can be designed to
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Network is a dark lampoon focusing on making fun of big television corporations. In the 1970s television was such a booming market that everybody tuned into watch. Network was expressing the fact that nobody had fact in what they were watching. it shows that we watch television and are being fed what you know without doing any personal research. The movie had many truths to it. Yes exaggerated but still accurate. The movie expresses strongly that the writer of the film saw that America was being
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