mmTASK 1 a) Explain the following types of data communication networks and their applications * Public switched telephone network (PSTN) * Local area networks (LANs) * Metropolitan area networks (MANs) * Wide area networks (WANs) * Packet switched data network (PSDN)‚ * Integrated services digital network (ISDN) Public switched telephone network (PSTN) Public Switched telephone network (PSTN) is the global collection of interconnects originally designed to
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Digital Transmission of Digital Data Digital Transmission of Digital Data Digital Data -- can be represented electronically(by sequences of specified voltage levels) or optically Digital Transmission -- sending of information over a physical communications media in the form of digital signals. Page 2 Digital Transmission of Digital Data Computers produce binary data Standards needed to ensure both sender and receiver understands this data Codes: digital combinations
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ChoicePoint Data Breach Brandon Harvey CSIA 301-7381 August 8‚ 2012 Professor Abraham Bloom Abstract The ChoicePoint data breach occurred in 2005. This insider data breach brought to light how a company can still be vulnerable to having data stolen from its databases even without any type of hacking of their system. By not properly vetting request for new accounts and request for information led to the theft of over a hundred thousand records of people’s personal information. ChoicePoint Data Breach
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Limitations of Data Mining Data mining is one of the more efficient tools when it comes to looking for specific characteristics over large amounts of data. It is as simple as typing in certain keywords and the words being highlighted in certain articles and other data. Data mining however‚ is not nearly a perfect process. It has certain limitations and capabilities that can vary by situation. The article N.Y. bomb plot highlights limitations of data mining‚ brought up a few very good points
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DATA RETRIEVAL CHART Importance / Economic Values | Problems / Challenges | Effect to the Economy | Government Programs | 1. Water resources provide us aquatic creatures like fish that serves as our food which is a basic need. | Some fisherman use dangerous fishing methods like muro-ami and dynamite fishing. | Red tide decreases the quality of the fish that we catch. | R.A. 1751 – Anti illegal fishing. | 2. Fishing makes a general improvement in living standards because of the profits
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WEEK 1 WHAT ARE DATA STRUCTURES? WHAT ARE ALGORITHMS? REVIEW OF JAVA AND OOP ENCAPSULATION‚ INHERITANCE‚ POLYMORPHISM CLASSES METHOD INTERFACES DATA STRUCTURES In computer science‚ a data structure is a particular way of storing and organizing data in a computer so that it can be used efficiently. Different kinds of data structures are suited to different kinds of applications and some are highly specialized to certain tasks. For example‚ B-trees are particularly well-suited
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Task 3 links to learning outcome 1‚ assessment criteria 1.3. • Confidentiality and data protection are vital when running a home based childcare service. Write an explanation of the importance of both. Confidentiality The definition of ‘confidential’ is; 1. Done or communicated in confidence; secret. 2. Entrusted with the confidence of another: a confidential secretary. 3. Denoting confidence or intimacy: a confidential tone of voice. 4. Containing information‚ the unauthorised
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The Shampoo Data Set This data set is generated by a study of Brand X shampoo. It contains two measurements of customer satisfaction (on a scale from 0 to 100) with a shampoo sample. The customer satisfaction measurements were taken from 10 men and 10 women at two separate times. The first measurement is taken before the presentation of an advertising campaign‚ and the second measurement is taken after the campaign. The last column contains a dichotomous measure of purchase intentions. Each
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SYSTEMS‚ INC‚ INC. DATA PROCESSING AGREEMENT This DATA PROCESSING AGREEMENT is made and entered into as of the 1st day of August 2008 by and between Big Bank and Systems‚ Inc. In consideration of the mutual promises and covenants contained herein‚ the parties hereto agree as follows: 1. DATA PROCESSING SERVICES. Systems Inc. agrees to render to Big Bank the data processing services described on Exhibit "A" (the "Services") for the term of this Agreement‚ and Big Bank agrees to purchase the Services
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the stock prices by using trends‚ patterns‚ moving averages observed from historical data. However‚ there have been a certain number of people criticizing the use of past data. Among these people‚ a French mathematician‚ Louis Bachelier raised a theory called Efficient Market Hypothesis more than a century ago. The theory states that stock prices follow a random walk‚ which discouraged the study of historical data. This is very controversial and has led to an ever lasting dispute about the reliability
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