DC10 PART-I DATABASE MANAGEMENT SYSTEMS TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or best alternative in the following: Q.1 In the relational modes‚ cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (C) Data definition language. Ans: B Q.3 The view of total database content is (A) Conceptual view
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study: MBA Course Title: Marketing Research Course code: MBA 763 Assignment: Secondary Data Mat Number: 74168 Name: Abiona Timothy Olufemi What is Data Data is a collection of facts‚ such as numbers‚ words‚ measurements‚ observations or even just descriptions of things. 1.Information in raw or unorganized form (such as alphabets‚ numbers‚ or symbols) that refer to‚ or represent‚ conditions‚ ideas‚ or objects. Data is limitless and present everywhere in the universe. See also information and knowledge
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Topic 1: The Data Mining Process: Data mining is the process of analyzing data from different perceptions and summarizing it into useful evidence that can be used to increase revenue‚ cut costs or both. Data mining software is one of a number of analytical tools for analyzing data. It allows users to analyze data from many different dimensions or angles‚ categorize it and summarize the relationships identified. Association‚ Clustering‚ predictions and sequential patterns‚ decision trees and classification
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is to be used as a guide along with other review. Chapter 1 1. The circle graph shows the relative size of each grade (9‚ 10‚ 11‚ and 12) in a high school. (a) If the school has 900 students in all‚ calculate the number of students in each grade. (b) Construct a new circle graph to show how the percent of Grade 9 students rose by 10% and the percent of Grade 11 students fell by 10% the following year. Compare graphs. 2. Analyze the following box-and-whisker plot. What are the median
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What is Management Accounting Introduction Management accounting is concerned with providing information to managers – that is‚ people inside an organisation who direct and control its operations. (Management Accountin Seal et al) It provides very important information that businesses need to operate efficiently and accounts that accurately show financial information that managers need to make decisions in the best interest of the business. In this essay there will be an assessment on the claim
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What is Data Management? What are some of the difficulties that organizations face when managing data? How can data warehousing‚ online transactional databases and data mining assist with these difficulties? May 18‚ 2014 Kendra L Thompson ITEC 6111: Information Technology in the Organization Professor Mello Star Just as cars need fuel‚ so does organizations‚ when it comes to data it serves as fuel to many organizations. Without the use of data‚ organizations would probably “go
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Data Management Strategy in Organizations Today Regardless of the size of an organization‚ proper data management is vital for innumerable reasons. Data is stored in various forms- computer‚ paper‚ or any form of electronic media. Some data can be obstructed after a certain period‚ but other data would be crucial for the operative management of a company. In other words‚ inadequate data management could contribute to the success or failure of an organization. Unfortunately many companies have
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Troy Wilson* suggest a way for preserving and enhancing the value of exploration data E very year explorationists‚ industrywide‚ collect billions of dollars worth of data. Yet‚ when it comes time for geologists to extract value from their information‚ they often find that value has been lost through poor practices in data management. There is no reliable record of the data that has been collected or data is not where it should be - it has been misplaced or corrupted. Re-assembling information
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Question 1 What is a data warehouse? What problems does it solve for a business? A data warehouse is a place where data is stored for archival purpose‚ analysis purpose. Usually a data warehouse is either a single computer or many computers servers tied together to create one giant computer systems. Data warehouse solve a lot of problems to companies as it helps to structure files and avoid unnecessary duplication of data. Data warehouse also allows to easily updating data and encourages management to regard
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Effective Data Management Strategies and Business Intelligence Tools Keiser University Dr. Thompson MBA 562 April 12‚ 2012 Introduction In today’s society‚ many individuals and companies use smaller and more powerful computing and communication devices. These devices have better connectivity when in both wired and wireless environments‚ and accepted standards for data transfer and presentation. These devices play a major role in the lives of individuals and companies
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