Exam 9: Data Design
Exam 1: Introduction to Systems Analysis and Design112 Questions
Exam 2: Analyzing the Business Case112 Questions
Exam 3: Managing Systems Projects112 Questions
Exam 4: Requirements Modeling112 Questions
Exam 5: Data and Process Modeling112 Questions
Exam 6: Object Modeling112 Questions
Exam 7: Development Strategies112 Questions
Exam 8: User Interface Design112 Questions
Exam 9: Data Design112 Questions
Exam 10: System Architecture111 Questions
Exam 11: Managing Systems Implementation112 Questions
Exam 12: Managing Systems Support and Security112 Questions
Exam 13: Communication Tools45 Questions
Exam 14: CASE Tools44 Questions
Exam 15: Financial Analysis Tools44 Questions
Exam 16: Internet Resource Tools45 Questions
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A repeating group is a set of one or more fields that can occur only once in a single record, with each occurrence having the same value.
(True/False)
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Computers represent data as ____________________ that have only two possible values: zero (0) or one (1).
(Short Answer)
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-In the table or file shown in the accompanying figure, a(n) ____________________ is a set of related fields that describes one instance, or occurrence of an entity.

(Short Answer)
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A table design is in third normal form (3NF) if it is in 2NF and if all nonkey fields are dependent on other nonkey fields.
(True/False)
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____ means that a system can be expanded, modified, or downsized easily to meet the rapidly changing needs of a business enterprise.
(Multiple Choice)
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A(n) ____________________ date is the total number of days from some specific base date.
(Short Answer)
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MATCHING
Identify the letter of the choice that best matches the phrase or definition.
-A foreign key value that does not match an existing key in another table.
(Multiple Choice)
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Because it supports virtually all languages, ____________________ has become a global standard.
(Short Answer)
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One problem in a typical file-processing environment is the rigid data structure. _________________________
(True/False)
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A(n) ____ is a set of letters or numbers that represents a data item.
(Multiple Choice)
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Which of the following is the advantage of a DBMS (database management system)?
(Multiple Choice)
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-In the accompanying figure, any field that could serve as a primary key is called a ____.

(Multiple Choice)
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In a file-oriented information system, a history file contains reference data used by the information system.
(True/False)
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____ is the process of converting readable data into unreadable characters to prevent unauthorized access to the data.
(Multiple Choice)
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In a file-oriented information system, a table file is a file created for historical or archiving purposes.
(True/False)
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To protect stored data, users can be asked to furnish a proper user ID and password to access a file or database.
(True/False)
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-A(n) ____________________, such as that shown in the accompanying figure, contains a set of related records that store data about a specific entity.

(Short Answer)
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The inherent efficiency of high-volume processing on larger computers is called ____________________.
(Short Answer)
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