Exam 3: Database Systems, Data Warehouses and Data Marts
Exam 1: Information Systems: An Overview208 Questions
Exam 2: Computers: The Machines Behind Computing105 Questions
Exam 3: Database Systems, Data Warehouses and Data Marts105 Questions
Exam 4: Personal, Legal, Ethical and Organizational Issues of Information Systems105 Questions
Exam 5: Protecting Information Resources109 Questions
Exam 6: Data Communication105 Questions
Exam 7: The Internet, Intranets, and Extranets105 Questions
Exam 8: E-Commerce105 Questions
Exam 9: Global Information Systems109 Questions
Exam 10: Building Successful Information Systems105 Questions
Exam 11: Enterprise Systems106 Questions
Exam 12: Management Support Systems105 Questions
Exam 13: Intelligent Information Systems105 Questions
Exam 14: Emerging Trends, Technologies, and Applications105 Questions
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A _____converts logical requests from users into their physical equivalents by interacting with other components of the database management system (DBMS).
(Multiple Choice)
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Which of the following components of a data model describes methods and calculations that can be performed on data, such as updating and querying data?
(Multiple Choice)
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Which of the following file structures is similar to a book index that lists page numbers where certain topics can be found?
(Multiple Choice)
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In a(n) _____, records in files are organized and processed in numerical order.
(Multiple Choice)
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Explain how information in a database is observed through the physical view and the logical view.
(Essay)
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With the indexed sequential access method (ISAM), records cannot be accessed randomly.
(True/False)
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Data in a database is used for analytical purposes, whereas data in a data warehouse is used for capturing and managing transactions.
(True/False)
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Discuss how data was stored in flat files in the past. Explain the disadvantages associated with the flat file organization.
(Essay)
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The _____ method for accessing files is effective when a large number of records are processed less frequently, perhaps on a quarterly or yearly basis.
(Multiple Choice)
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In the context of the operators used in a query by example (QBE) form, the _____ is used when only one of the conditions in the QBE form must be met.
(Multiple Choice)
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Briefly explain the responsibilities of a database administrator (DBA).
(Essay)
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The advantage of the _____is that both sequential and random access can be used to access records, depending on the number being accessed.
(Multiple Choice)
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The variety dimension of big data refers to the combination of _____.
(Multiple Choice)
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In the context of the input component of a data warehouse, _____ collect, integrate, and process data that can be used by all functional areas in an organization.
(Multiple Choice)
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In object-oriented databases, grouping objects along with their attributes and methods into a class is called _____.
(Multiple Choice)
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Although a database can consist of only a single file, it is usually a group of files.
(True/False)
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In the context of the types of data in a database, which of the following is a source of external data?
(Multiple Choice)
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Briefly explain the role of business analytics (BA) in decision making and compare it to business intelligence (BI).
(Essay)
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