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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A good data model is essentially non-redundant. This means that each data attribute, other than foreign keys, describes at most one entity.
(True/False)
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A significant disadvantage of ___________________ (conventional files or databases) is their inflexibility and non-scalability.
(Short Answer)
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SQL allows you to __________________ two or more tables across a common field (a primary and a foreign key).
(Short Answer)
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Files that contain relatively static data that can be shared by applications to maintain consistency and improve performance are known as:
(Multiple Choice)
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The database technology used to support data architecture is called:
(Multiple Choice)
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As enterprise systems and applications are re-engineered, the trend is overwhelmingly in favor of replacing database systems and applications with legacy file-based systems and applications.
(True/False)
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The physical, relational database implementation of a data model is known as a:
(Multiple Choice)
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When a table or entire rows in a table are assigned to different database servers and locations, it is known as:
(Multiple Choice)
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Triggers are programs embedded within a table that are automatically invoked by updates to another table.
(True/False)
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A fundamental characteristic of SQL is that commands return a set of records.
(True/False)
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In a relational database ach table (sometimes called a relation) consists of named columns (which are fields or attributes) and any number of unnamed rows (which correspond to records).
(True/False)
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Fields whose values identify one and only one record in a file are called:
(Multiple Choice)
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________________________________ files and tables contain stored copies of historical data for easy retrieval and review without the overhead of regeneration.
(Short Answer)
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________________________________ are programs embedded within a table that can be called from an application program.
(Short Answer)
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A(n) _____________________________ is the physical model or blueprint for a database. It represents the technical implementation of the logical data model.
(Short Answer)
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A data manipulation language (DML) is used to create, read, update, and delete records in the database and to navigate between different records and types of records.
(True/False)
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Many information systems shops hesitate to give end users access to operational databases for queries and reports.
(True/False)
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During the creation of database schemas, NULL means the field must have a value; whereas, NOT NULL means the field must not have a value.
(True/False)
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Archival files and tables contain master and transaction file records that have been moved from on-line storage to off-line storage.
(True/False)
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