Exam 3: Database Systems,Data Warehouses,and Data Marts

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The _____ component of a database management system (DBMS)is used to add,delete,modify,and retrieve records from a database.

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The variety dimension of big data refers to a combination of _____.

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In a(n)_____ model,each record can have multiple parent and child records.

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In a relational database model,the columns are known as _____.

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Which of the following data sources provides the input a data warehouse needs to perform analyses and generate reports?

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Business intelligence uses scorecards and query reports to support decision-making activities,whereas business analytics uses data mining tools and predictive modeling.

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Explain the ways in which information in a database is observed through a physical view.

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A _________ is a collection of related data that is stored in a central location or multiple locations.

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What is the function of a distributed database management system (DDBMS)?

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What are the areas in the retail industry that can benefit from big data?

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List and describe the features of data in a data warehouse in contrast to data in a database.

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_________ is used to facilitate and manage transaction-oriented applications,such as point-of-sale,data entry,and retrieval transaction processing.

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With the indexed sequential access method (ISAM),records cannot be accessed randomly.

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What is a data-driven Web site?

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An advantage that a database has over a flat file system is that more information can be generated from the same data.

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Identify an advantage of using a database over a flat file system.

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A database administrator is responsible for _____.

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Identify a true statement about a flat file system.

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Labor and population statistics are examples of sources for internal data that are accessed by a database.

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The use of the OR operator means that only one of the conditions in a structured query language (SQL)statement must be met.

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