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Chapter 07 TF - T F 5 A one-to-one relationship exists when...

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Systems Analysis and Design, 6 th Edition b3c3fa4b0ef68aa7a163fd48edaf184015fc085f.doc Page 1 of 1 Name _________________________ Date ___________ Instructions: Circle T if the statement is true or F if the statement is false. T F 1. The inherent efficiency of low-volume processing on larger computers is called economy of scale. T F 2. With a query by example (QBE) language, the user provides an example of the data requested. T F 3. An intranet is an extension of the company’s extranet that allows access by external users, such as customers and suppliers. T F 4. A primary key is a field or combination of fields that uniquely and minimally identifies a particular member of an entity.
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Unformatted text preview: T F 5. A one-to-one relationship exists when exactly one of the second entity occurs for each instance of the first entity. T F 6. Significant digit codes distinguish items by using a series of subgroups of digits. T F 7. A data clearinghouse is an integrated collection of data that can include seemingly unrelated information no matter where it’s stored in a company. T F 8. The basic elements of logical data are alphabetic or numeric characters such as the letter A or the number 9. T F 9. Unicode is a relatively recent coding method that represents characters as integers. T F 10. An absolute date is an estimation of the total number of days from some specific base date....
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