Data Concepts 14

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True/False Questions 1. A file is a collection of similar records. Answer: True Page: 518 LOD: Easy 2. A database is a collection of interrelated files. Answer: True Page: 518 LOD: Easy 3. An historical advantage of using conventional files has been processing speed. They can be optimized for the access of the application. Answer: True Page: 519 LOD: Easy 4. Duplication of data items in multiple files is normally cited as the principal disadvantage of file-based systems. Answer: True Page: 519 LOD: Easy 5. A database is not necessarily dependent on the applications that use it. Answer: True Page: 518 LOD: Easy 6. Given the large capacity disks that are now available, database administrators no longer have to be concerned about estimating how much disk capacity is required for a new database. Answer: False Page: 539 LOD: Medium Rationale: It is still important for the database administrator to estimate how much disk capacity is required for a new database to ensure that sufficient disk space is available. One never knows how much of that space is already consumed by other applications and their data. 7. It is important for the database administrator to estimate how much disk capacity is required for a new database to ensure that sufficient disk space is available. Answer: True Page: 539 LOD: Easy 8. Conventional files are relatively difficult to design and implement because they are normally designed for use with multiple applications or information systems. Answer: False Page: 518 LOD: Medium Rationale: Conventional files are relatively easy to design and implement because they are normally designed for use with a single application or information

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