protection of assets. No computer system or network achieves perfect security; even a system switched off with its hard drive removed sunken in a lead case in the bottom of a deep pool in an underground facility lacks security‚ as it guarantees integrity and confidentiality but completely sacrifices availability. As a security professional‚ you must understand the risks a network faces; you must‚ in essence‚ know how to bring the network down‚ to steal the data you want‚ and to falsify important information
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project. In primary data collection‚ we collect the data ourselves by using methods such as interviews and questionnaires. The key point here is that the data we collect is unique to us and our research and‚ until we publish‚ no one else has access to it. There are many methods of collecting primary data and the main methods include: • QUESTIONNAIRES • INTERVIEWS • FOCUS GROUP INTERVIEWS • SURVYES • OBSERVATION • DIARIES • ANALYSING THE DATA The primary data‚ which is generated by
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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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the Distribution Network in a Supply Chain Sunil Chopra Kellogg School of Management‚ Northwestern University 2001 Sheridan Road‚ Evanston‚ IL 60208‚ U.S.A Tel: 1-847-491-8169; Fax: 1-847-467-1220; e-mail:s-chopra@kellogg.northwestern.edu Abstract This paper describes a framework for designing the distribution network in a supply chain. Various factors influencing the choice of distribution network are described. We then discuss different choices of distribution networks and their relative
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Carrier Sense Multiple Access with Collision Avoidance. However‚ simple CSMA is susceptible to the hidden node problem‚ especially in so called ad hoc networks where a node may communicate directly with every other node in range or using intermediate nodes as relays otherwise. Hidden nodes cause costly packet collisions and thus significantly affect network performance. In order to combat the hidden node problem‚ a mechanism known as Request to Send/Clear to Send (RTS/CTS) handshake is often used. RTS/CTS
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Censored data & Truncated data Censoring occurs when an observation or a measurement is outside the range and people don’ t know the certain value. The value is always above or below the range that people set. However‚ truncated data means that because of the limits‚ such as time‚ or space‚ people lose some data. Truncation is to cut off the data. In other words‚ we have collected and use the data‚ but the data is not in the range we have. It is called censored data. We don’t use the data because
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insight into the usage of data warehousing and data mining techniques to enhance the productivity of the business. The study of the processes is analysed so as to get the need of adaptation according to inherent demands of these industries in near future. The main topics we are discussing here are: a) Data warehousing b) Data Mining c) ETL d) Data Mart An attempt has been made to analyse different ways of using these for the enhancement in the different field. Data warehousing and current
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1. Background Samsung Group is a South Korean multinational conglomerate company headquartered in Samsung Town‚ Seoul. Samsung was founded by Lee Byung-chull in 1938 as a trading company. It entered the electronics industry in the late 1960s and the construction and shipbuilding industries in the mid-1970s. Since the 1990s Samsung has increasingly globalised its activities‚ and electronics‚ particularly mobile phones and semiconductors‚ has become its most important source of income. In the first
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"Data Compression and Data Processing” Please respond to the following: * Explain whether or not you believe there is a discernible difference in efficiency between compressing and decompressing audio data and compressing and decompressing image data. Provide at least three reasons for your argument. There are efficiency differences between a given compressions for audio or image‚ this is due to: 1. The difference in data‚ example bmp‚ jpg‚ gif of the same image‚ mp3‚ wav‚ ogg for
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Professor Faleh Alshamari Submitted by: Wajeha Sultan Final Project Hashing: Open and Closed Hashing Definition: Hashing index is used to retrieve data. We can find‚ insert and delete data by using the hashing index and the idea is to map keys of a given file. A hash means a 1 to 1 relationship between data. This is a common data type in languages. A hash algorithm is a way to take an input and always have the same output‚ otherwise known as a 1 to 1 function. An ideal hash function is
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