Exam 13: Business Intelligence and Data Warehouses
Exam 1: Database Systems72 Questions
Exam 2: Data Models75 Questions
Exam 3: The Relational Database Model74 Questions
Exam 4: Entity Relationship Ermodeling75 Questions
Exam 5: Advanced Data Modeling83 Questions
Exam 6: Normalization of Database Tables92 Questions
Exam 7: Introduction to Structured Query Language SQL92 Questions
Exam 8: Advanced SQL95 Questions
Exam 9: Database Design87 Questions
Exam 10: Transaction Management and Concurrency Control76 Questions
Exam 11: Database Performance Tuning and Query Optimization82 Questions
Exam 12: Distributed Database Management Systems72 Questions
Exam 13: Business Intelligence and Data Warehouses75 Questions
Exam 14: Big Data Analytics and NoSQL76 Questions
Exam 15: Database Connectivity and Web Technologies81 Questions
Exam 16: Database Administration and Security81 Questions
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_____ are numeric measurements (values)that represent a specific business aspect or activity.
(Short Answer)
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________.means to decompose data into more atomic components or data at lower levels of aggregation.
(Short Answer)
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functionality ranges from simple data gathering and transformation to very complex data analysis and presentation.
(Short Answer)
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_____ use web-based technologies to present key business performance indicators or information in a single integrated view,generally using graphics in a clear,concise,and easy to understand manner.
(Short Answer)
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The ROLLUP extension is used with the GROUP BY clause to generate aggregates by the listed columns,including the last one.
(True/False)
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_____ is a measurement of the density of the data held in the data cube and is computed by dividing the total number of actual values in the cube by the total number of cells in the cube.
(Short Answer)
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Decision support data are a snapshot of the operational data at a given point in time.
(True/False)
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Data implies that all business entities,data elements,data characteristics,and business metrics are described in the same way throughout the enterprise.
(Multiple Choice)
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Business intelligence (BI)architecture is composed of data,people,processes,technology,and the management of such components.
(True/False)
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The hierarchy provides the capability to perform drill-down and roll-up searches in a data warehouse.
(Short Answer)
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By default,the fact table's primary key is always formed by combining the superkeys pointing to the
Dimension tables to which they are related.
(True/False)
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A data _____ is a centralized,consolidated database that integrates data derived from the entire organization and from multiple sources with diverse formats.
(Short Answer)
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are in charge of presenting data to the end user in a variety of ways.
(Multiple Choice)
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In multidimensional terms,the ability to focus on slices of the cube to perform a more detailed analysis is known as _____.
(Short Answer)
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