Page 2 Data communications (Datacom) is the engineering Datacom) discipline concerned with the communication between devices. A network is a set of devices (often referred to as nodes) nodes) connected by communication links. links. A computer network is any set of computers or devices connected to each other via some form of transmission medium with the ability to exchange data. Here information is presented in a form which is agreed upon by the parties creating and using the data. A computer
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Bureau is the leading source of quality data about the Nation’s people and economy. It collects‚ analyzes and disseminates such data through surveys‚ decennial data collection activities‚ Federal‚ state and local sources and many private organizations‚ to its citizens and private and public organizations alike. In the process‚ the Bureau collects a lot of personally identifiable information (PII) through these sources. Therefore‚ the protection of these data and systems for collecting and processing
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the researcher used Quantitative data collection methods. Using qualitative data collection method‚ it rely on random sampling and structured data collection instruments that fit diverse experiences into predetermined response categories. They produce results that are easy to summarize‚ compare‚ and generalize. Quantitative research is concerned with testing hypotheses derived from theory and/or being able to estimate the size of a phenomenon of interest. Depending on the research question‚ participants
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The Salem Witch Trials of colonial Massachusetts is an infamous event known throughout the entirety of the world. This is a result of the unnecessary executions of a collection of people. The bloodshed of the number of citizens is referred to as unnecessary for the reason that the trials were supposedly surrounded by paranormal activity. Proof that the accused legitimately participated in demonic activities such as witchcraft was incapable of being found. Although it may be factual that it could
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without the network planning and configuration of the Data-Warehouse‚ Data-Mart and Data-Mining. The relational database series of logically related two-dimensional tables or files to store information in the form of a database. The files that Wal-Mart will create for an online ordering would be order would be Order Number‚ Order Date‚ Customer Number‚ Delivery Address‚ and Amount Ordered. Employee files would also have unique data‚ Employee Number‚ Data of Hire‚ Employee Name‚ (first and last). Regular
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Managing Data Resources Case: Better data help Virgin Mobile Australia win the customer wars Virgin mobile Australia is a major player in the Australian mobile industry. It had grown aggressively by pioneering new products and services‚ including a prepaid service that did not require a contract‚ free voice mail‚ and billing all calls by second. Other operators followed suit‚ leaving Virgin Mobile Australia wondering how it could maintain its competitive lead. The answer lay in making better
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1. With necessary diagram explain about data warehouse development life cycle . Ans : Introduction to data warehouses. Data warehouse development lifecycle (Kimball’s approach) Q. 2. What is Metadata ? What is it’s uses in Data warehousing Archietechture ? Ans : In simple terms‚ meta data is information about data and is critical for not only the business user but also data warehouse administrators and developers. Without meta data‚ business users will be like tourists left
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Mass madness‚ also known as mass hysteria‚ has occurred for centuries around the world. One of the most famous cases in the history of mass hysteria is the Salem Witch Trials. Interestingly‚ there was another outbreak of mass hysteria in the same town‚ now known as Danvers‚ Massachusetts instead of Salem Village‚ in 2013. Instead of accusing community members of witchcraft‚ a group of teenagers at the Essex Agricultural and Technical School reported inexplicable symptoms such as uncontrollable vocal
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Data Collection Methods III Questionnaires A questionnaire is a preformatted written set of questions to which respondents record their answers usually within rather closely defined alternatives. Questionnaires are an efficient data collection mechanism when the researcher knows exactly what is required and how to measure the variables of interest. Questionnaires can be administered personally‚ mailed to the respondents‚ or electronically distributed. Guidelines for Questionnaire Design
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Table of Contents Part 1: General review of data link layer 2 a) Explain the working principles of the data link layer. 2 b) Is controlled access better than contention for media access control? Discuss. 2 c) Why is error detection important in this layer? What is being measured? 3 d) Identify three significant noises that can cause errors in data communication digital circuits. Briefly explain. 3 Part 2: General review of error correction 4 a) Why is cyclical redundancy
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