Data Encryption Standard In 1972‚ the NBS Institute for Computer Sciences and Technology (ICST) initiated a project in computer security‚ a subject then in its infancy. One of the first goals of the project was to develop a cryptographic algorithm standard that could be used to protect sensitive and valuable data during transmission and in storage. Prior to this NBS initiative‚ encryption had been largely the concern of military and intelligence organizations. The encryption algorithms‚ i.e.‚ the
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Deeds are a lot more important than words. The little saying ‘easier said than done’ proves that point. A lot of the characters in The Iliad say a lot of things‚ just to say them. Only a few actually go about their words. They usually are bluffing throughout their speeches that they give or conversations they have with other humans or gods. Achilles bluffed through a lot of his words. In Book 1‚ he tried playing it cool by helping Chryses get his daughter back from Agamemnon. “Just how‚ Agamemnon
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Data base • What are Group Functions? • Types of Group Functions • Using Group Functions • Using AVG and SUM function • Using MIN and MAX function • Using COUNT function • Group functions and NULL values • Using the NVL Function with Group Function • Creating GROUP of DATA • Creating GROUP of DATA:GROUP BY Clause • Using the GROUP BY clause • Grouping by more than one column • Using the GROUP BY clause on multiple columns • Illegal
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do you mean by data communication? Ans: It is the exchange of data between two devices via some form of transmission medium such as wire cable. The communicating system must be part of a communication system made up of a combination of hardware and software. The effectiveness of a data communication system depends on three fundamental characteristics: delivery‚ accuracy and timeliness. 2. What is simplex? Ans: It is the mode of communication between two devices in which flow of data is unidirectional
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The Benefits of Being Data-Driven: There are three primary benefits to making your HR organization data-driven: Expanded Awareness: As the amount of HR data within an organization has grown‚ so too has the need to glean better information from that data. Problems that HR organizations assumed were just part of “the cost of doing business” are now identified‚ acted on‚ and in many cases‚ prevented. HR business indicators that were previously only hinted at by virtue of an anomaly here or a trend
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tructureResearch on Graphs in Data Structure Source: http://www.algolist.net/Algorithms/Graph/Undirected/Depth-first_search Introduction to graphs Graphs are widely-used structure in computer science and different computer applications. We don’t say data structurehere and see the difference. Graphs mean to store and analyze metadata‚ the connections‚ which present in data. For instance‚ consider cities in your country. Road network‚ which connects them‚ can be represented as a graph and then analyzed
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An important facet to any successful business in today’s economy is the functions within the organization itself. Overall‚ an organizing function of management outlines the practice in which individuals within the organization interact and work with each other. The functions at Alliance Data have allowed the optimization of organizational resources to effectively and efficiently service their employees‚ their shareholders‚ and more importantly their internal and external customers. Alliance Data is
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Characteristics and quality of data transmission – Dependent on characteristics of medium and signal – Guided medium ∗ Medium is more important in setting transmission parameters – Unguided medium ∗ Bandwidth of the signal produced by transmitting antenna is important in setting transmission parameters ∗ Signal directionality · Lower frequency signals are omnidirectional · Higher frequency signals can be focused in a directional beam • Design of data transmission system – Concerned with data rate and distance
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measure of central location for the data? a. standard deviation b. mean c. variance d. range Answer: b 2. A numerical value used as a summary measure for a sample‚ such as sample mean‚ is known as a a. population parameter b. sample parameter c. sample statistic d. population mean Answer: c 3. Since the population size is always larger than the sample size‚ then the sample statistic a. can never be larger than the population parameter b. can
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Basic Business Statistics 11th Edition Chapter 1 Introduction and Data Collection Basic Business Statistics‚ 11e © 2009 Prentice-Hall‚ Inc. Chap 1-1 Learning Objectives In this chapter you learn: How Statistics is used in business The sources of data used in business The types of data used in business The basics of Microsoft Excel The basics of Minitab Basic Business Statistics‚ 11e © 2009 Prentice-Hall‚ Inc.. Chap 1-2 Why Learn Statistics? So you are
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