Exam 3: Descriptive Analytics II: Business Intelligence and Data Warehousing
Exam 1: An Overview of Business Intelligence,analytics,and Data Science70 Questions
Exam 2: Descriptive Analytics I: Nature of Data,statistical Modeling,68 Questions
Exam 3: Descriptive Analytics II: Business Intelligence and Data Warehousing70 Questions
Exam 4: Predictive Analytics I: Data Mining Process, methods, and Algorithms69 Questions
Exam 5: Predictive Analytics II: Text, web, and Social Media Analytics70 Questions
Exam 6: Prescriptive Analytics: Optimization and Simulation68 Questions
Exam 7: Big Data Concepts and Tools69 Questions
Exam 8: Future Trends,privacy and Managerial Considerations in Analytics68 Questions
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Subject oriented databases for data warehousing are organized by detailed subjects such as disk drives,computers,and networks.
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False
What is the definition of a data warehouse (DW)in simple terms?
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In simple terms,a data warehouse (DW)is a pool of data produced to support decision making; it is also a repository of current and historical data of potential interest to managers throughout the organization.
A(n)________ data store (ODS)provides a fairly recent form of customer information file.
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operational
Why is a performance management system superior to a performance measurement system?
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OLTP systems are designed to handle ad hoc analysis and complex queries that deal with many data items.
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Performing extensive ________ to move data to the data warehouse may be a sign of poorly managed data and a fundamental lack of a coherent data management strategy.
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Bill Inmon advocates the data mart bus architecture whereas Ralph Kimball promotes the hub-and-spoke architecture,a data mart bus architecture with conformed dimensions.
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Given that the size of data warehouses is expanding at an exponential rate,________ is an important issue.
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Moving the data into a data warehouse is usually the easiest part of its creation.
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When representing data in a data warehouse,using several dimension tables that are each connected only to a fact table means you are using which warehouse structure?
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Mention briefly some of the recently popularized concepts and technologies that will play a significant role in defining the future of data warehousing.
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Operational or transaction databases are product oriented,handling transactions that update the database.In contrast,data warehouses are
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With the balanced scorecard approach,the entire focus is on measuring and managing specific financial goals based on the organization's strategy.
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The ________ Model,also known as the EDW approach,emphasizes top-down development,employing established database development methodologies and tools,such as entity-relationship diagrams (ERD),and an adjustment of the spiral development approach.
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A common way of introducing data warehousing is to refer to its fundamental characteristics.Describe three characteristics of data warehousing.
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The role responsible for successful administration and management of a data warehouse is the ________,who should be familiar with high-performance software,hardware,and networking technologies,and also possesses solid business insight.
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There are several basic information system architectures that can be used for data warehousing.What are they?
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________ is a mechanism for pulling data from source systems to satisfy a request for information.It is an evolving tool space that promises real-time data integration from a variety of sources,such as relational databases,Web services,and multidimensional databases.
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A(n)________ data mart is a subset that is created directly from the data warehouse..
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