Exam 13: Designing Databases

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An alternative to building conventional files is building a:

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C

Within the realm of metadata,there are record definitions and data item definitions.

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True

Metadata describes the name given and the length assigned each record.

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False

A process of applying algorithms for extracting patterns from data stored in data warehouses that are typically not apparent to human decision makers is called:

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Which of the following is true when implementing a one-to-many relationship?

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What is defined as any data item in a record that is used to identify the record?

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Which file is used when it is necessary to run a program,but no printer is available?

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An entity subtype is an entity that is used to represent a many-to-many relationship.

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Presentation of the data abstracted from the database must take one of two forms: graphs and tabular forms.

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Master files contain all the information about a data entity.

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List and describe the four anomalies that may occur when creating database tables.

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Which word is used interchangeably with the term data item?

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Transaction files:

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Each separate data entity should create its own master database table.

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Master files are large and contain all the information about an entity.

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The symbol used to represent additional attributes of another entity that may not be present on every record of the first entity is called an:

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A ________ is a central source of data meant to be shared by many users for a variety of applications.

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Within the realm of ________,there are entities and attributes.

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________ are associations between entities.

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Each distinct data entity may be stored on several master database tables.

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