Lesson 6 Self-Quiz – Flashcards
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If Mr. Smith's bike has been sent to his new address, but the bill to his old one, it can most likely be attributed to a lack of data _______.
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integrity
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A collection of related fields such as a person's name, address, and age.
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Record
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In an object-oriented database, attributes are specific instances of a class that can contain both data and instructions to manipulate the data.
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false
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In the object-oriented database model, this term is the equivalent to a field in a relational model.
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Method
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In a distributed database, all the data must be physically located in one place.
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false
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Access to these databases is offered to the public or selected outside individuals, for a fee.
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Commercial databases
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The logical arrangement of data in a database is called the database model.
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true
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Relational database tables require a common data item.
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true
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This subsystem defines the logical structure of the database by using a data dictionary or schema.
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Data definition
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A record is a collection of related tables.
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false
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Which of the following is not an advantage of using a database?
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Reliability
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Which of the following is an advantage of using multidimensional databases?
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Conceptualization
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The company database may be stored on a central database server and managed by a database administrator.
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true
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Individual databases are the foundation of management information systems.
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false
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Which view of data deals with how the data is actually formatted and located?
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Physical view
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Typically, one of the duties of a database administrator is to interact with the data administration subsystem.
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true
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The combined information presented on this type of database can be used to change the whole merchandising strategy of a store.
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Company
