Exam 13: Business Intelligence and Data Warehouses
Exam 1: Database Systems75 Questions
Exam 2: Data Models75 Questions
Exam 3: The Relational Database Model75 Questions
Exam 4: Entity Relationship Er Modeling75 Questions
Exam 5: Advanced Data Modeling75 Questions
Exam 6: Normalization of Database Tables75 Questions
Exam 7: Introduction to Structured Query Language Sql75 Questions
Exam 8: Advanced Sql75 Questions
Exam 9: Database Design75 Questions
Exam 10: Transaction Management and Concurrency Control74 Questions
Exam 11: Database Performance Tuning and Query Optimization75 Questions
Exam 12: Distributed Database Management Systems74 Questions
Exam 13: Business Intelligence and Data Warehouses74 Questions
Exam 14: Big Data and Nosql75 Questions
Exam 15: Database Connectivity and Web Technologies73 Questions
Exam 16: Database Administration and Security74 Questions
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Periodicity, usually expressed as current year only, previous years, or all years, provides information about the time span of the data stored in a table.
(True/False)
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Multidimensional data analysis techniques include advanced computational functions.
(True/False)
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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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Relational data warehouses use the star schema design technique to handle multidimensional data.
(True/False)
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Conceptually, MDBMS end users visualize the stored data as a three-dimensional cube known as a _____.
(Multiple Choice)
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Data warehouse data are organized and summarized by table, such as CUSTOMER and ADDRESS.
(True/False)
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_____ are numeric measurements (values) that represent a specific business aspect or activity.
(Short Answer)
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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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ROLAP and MOLAP vendors are working toward the integration of their respective solutions within a unified decision support framework.
(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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_____ can serve as a test vehicle for companies exploring the potential benefits of data warehouses.
(Multiple Choice)
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In a typical star schema, each dimension record is related to thousands of _____ records.
(Multiple Choice)
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To support a(n) _____ adequately, the DBMS might be required to support advanced storage technologies, and even more importantly, to support multiple-processor technologies, such as a symmetric multiprocessor (SMP) or a massively parallel processor (MPP).
(Essay)
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Computed or derived facts, at run time, are sometimes called _____ to differentiate them from stored facts.
(Multiple Choice)
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A _____ index is based on 0 and 1 bits to represent a given condition.
(Multiple Choice)
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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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To deliver efficient decision support, OLAP tools must have advanced data _____ features.
(Short Answer)
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Business intelligence is a framework that allows a business to transform data into information, information into knowledge, and knowledge into wisdom.
(True/False)
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Data visualization has its roots in the _____ sciences, which focus on how the human brain receives, interprets, organizes, and processes information.
(Multiple Choice)
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