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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A(n)________ architecture is used to build a scalable and maintainable infrastructure that includes a centralized data warehouse and several dependent data marts.
(Short Answer)
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In ________ oriented data warehousing,operational databases are tuned to handle transactions that update the database.
(Short Answer)
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Which approach to data warehouse integration focuses more on sharing process functionality than data across systems?
(Multiple Choice)
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Organizations seldom devote a lot of effort to creating metadata because it is not important for the effective use of data warehouses.
(True/False)
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Most data warehouses are built using ________ database management systems to control and manage the data.
(Short Answer)
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How does the use of cloud computing affect the scalability of a data warehouse?
(Multiple Choice)
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The hub-and-spoke data warehouse model uses a centralized warehouse feeding dependent data marts.
(True/False)
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Data ________ comprises data access,data federation,and change capture.
(Short Answer)
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In which stage of extraction,transformation,and load (ETL)into a data warehouse are anomalies detected and corrected?
(Multiple Choice)
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Which data warehouse architecture uses a normalized relational warehouse that feeds multiple data marts?
(Multiple Choice)
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Online ________ is a term used for a transaction system that is primarily responsible for capturing and storing data related to day-to-day business functions such as ERP,CRM,SCM,and point of sale.
(Short Answer)
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Because of performance and data quality issues,most experts agree that the federated architecture should supplement data warehouses,not replace them.
(True/False)
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Two-tier data warehouse/BI infrastructures offer organizations more flexibility but cost more than three-tier ones.
(True/False)
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A large storage location that can hold vast quantities of data (mostly unstructured)in its native/raw format for future/potential analytics consumption is referred to as a(n)
(Multiple Choice)
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All of the following are benefits of hosted data warehouses EXCEPT
(Multiple Choice)
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________ modeling is a retrieval-based system that supports high-volume query access.
(Short Answer)
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When querying a dimensional database,a user went from summarized data to its underlying details.The function that served this purpose is
(Multiple Choice)
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A Web client that connects to a Web server,which is in turn connected to a BI application server,is reflective of a
(Multiple Choice)
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All of the following are true about in-database processing technology EXCEPT
(Multiple Choice)
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