Exam 5: Data Resource Management
Exam 1: Foundations of Information Systems in Business146 Questions
Exam 2: Competing With Information Technology125 Questions
Exam 3: Computer Hardware160 Questions
Exam 4: Computer Software139 Questions
Exam 5: Data Resource Management119 Questions
Exam 6: Telecommunications and Networks126 Questions
Exam 7: Electronic Business Systems112 Questions
Exam 8: Enterprise Business Systems105 Questions
Exam 9: Electronic Commerce Systems111 Questions
Exam 10: Decision Support Systems123 Questions
Exam 11: Developing Businessit Strategies125 Questions
Exam 12: Developing Businessit Solutions145 Questions
Exam 13: Security and Ethical Challenges119 Questions
Exam 14: Enterprise and Global Management of Information Technology124 Questions
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Having data in independent files makes it easier to provide end users with information for ad hoc requests.
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(True/False)
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Correct Answer:
False
A weakness in the network model is that it cannot handle _______________ for information.
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(Short Answer)
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Correct Answer:
ad hoc requests
The project operation is used to create a subset of the columns contained in the temporary tables created by the select and join operations.
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(True/False)
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Correct Answer:
True
Database administrators and database design analysts work with end users and systems analysts to do all of the following except:
(Multiple Choice)
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According to the textbook case, file processing in Hadoop is not halted by hardware failures because _______________.
(Multiple Choice)
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Distributed databases require fewer resources when it comes to computing power and bandwidth.
(True/False)
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A data model serves as a logical framework on which to base the physical design of a database.
(True/False)
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Object technology allows designers to do all of the following except:
(Multiple Choice)
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In mainframe and server computer systems, the database management system controls the _______________ of the databases of computer-using organizations.
(Multiple Choice)
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Files are frequently classified by the application for which they are primarily used, such as a payroll file or an inventory file.
(True/False)
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Using a relational database, a user can temporarily combine two or more tables so that he/she can see relevant data in a form that looks like it is in one big table. This is the _______________ operation.
(Multiple Choice)
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Which of the following is a legitimate use for data mining?
(Multiple Choice)
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Databases contain data elements that describe both entities and the relationships among entities.
(True/False)
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A major benefit of multidimensional databases is that they are a compact and easy-to-understand way to visualize and manipulate data elements that have many interrelationships.
(True/False)
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The multidimensional database structure is considered one of the key technologies of a new generation of Web-based applications.
(True/False)
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_______________ contain both a variable number of fields and variable field lengths.
(Short Answer)
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The _______________ operation is used to create a subset of the columns contained in the temporary tables created by the select and join operations.
(Short Answer)
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