Exam 14: Database Design
Exam 1: The Context of Systems Analysis and Design Methods130 Questions
Exam 2: Information System Building Blocks81 Questions
Exam 3: Information Systems Development113 Questions
Exam 4: Project Management97 Questions
Exam 5: Systems Analysis161 Questions
Exam 6: Fact-Finding Techniques for Requirements Discovery166 Questions
Exam 7: Modeling System Requirements With Use Cases75 Questions
Exam 8: Data Modeling and Analysis173 Questions
Exam 9: Process Modeling231 Questions
Exam 10: Object-Oriented Analysis and Modeling Using the Uml125 Questions
Exam 11: Feasibility Analysis and the System Proposal149 Questions
Exam 12: Systems Design120 Questions
Exam 13: Application Architecture and Modeling170 Questions
Exam 14: Database Design268 Questions
Exam 15: Output Design and Prototyping101 Questions
Exam 16: Input Design and Prototyping148 Questions
Exam 17: User Interface Design75 Questions
Exam 18: Object-Oriented Design and Modeling Using the UML100 Questions
Exam 19: Systems Construction and Implementation60 Questions
Exam 20: Systems Operations and Support63 Questions
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Master files or tables contain records that are relatively permanent. Thus, once a record has been added to a master file, it remains in the system indefinitely. The values of fields for the record will change over its lifetime, but the individual records are retained indefinitely.
(True/False)
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Appropriate controls must be designed to ensure that no field takes on a value that is outside of the range of legal values. This refers to:
(Multiple Choice)
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The primary key for a record can have a NULL value. This defines a template record.
(True/False)
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______________________________________ files contain relatively static data that can be shared by applications to maintain consistency and improve performance.
(Short Answer)
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Database design should proceed only if the underlying logical data model is in at least _____________________ normal form.
(Short Answer)
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When entire tables are duplicated and stored in multiple locations or file servers, it is known as:
(Multiple Choice)
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The physical, relational database implementation of the data model is known as the scenario.
(True/False)
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Most organizations build several databases leading to significant and uncontrolled redundancy between databases.
(True/False)
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A primary key is a field whose values identify one and only one record in a file.
(True/False)
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A role name is an alternate name for a foreign key that clearly distinguishes the purpose that the foreign key serves in the table.
(True/False)
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Files that are special records of updates to other files, especially master and transaction files, are known as:
(Multiple Choice)
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Database technology is ______________________ (simpler or more complex) than file technology.
(Short Answer)
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A database management system (DBMS) is specialized computer software available from computer vendors that is used to create, access, control, and manage the database.
(True/False)
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Some database systems can compress unused fields and values to conserve disk storage space.
(True/False)
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Which of the following are not criteria for producing a quality data model?
(Multiple Choice)
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Foreign keys are pointers to the records of a different file in a database.
(True/False)
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A(n) _____________________________ is a collection of similar records.
(Short Answer)
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A single file in a database may only have one _______________________ key, but it may have several ____________________________keys.
(Short Answer)
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_________________________________ record structures allow different records in the same file to have different lengths.
(Short Answer)
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