MIS 311 Quiz2

MIS 311 Quiz2 - Practice Quiz TRUE/FALSE Indicate whether the sentence or statement is true or false_T 1 Relations are related to each other by

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Practice Quiz TRUE/FALSE Indicate whether the sentence or statement is true or false. __T__ 1. Relations are related to each other by sharing a common entity characteristic. __T__ 2. A relational DBMS is a single data repository in which data independence is maintained. __T__ 3. An entity is a person, place, or thing about which data are to be collected and stored. __F__ 4. A model is an exact representation of a real-world event. __F__ 5. A data model is built out of tables, rows, and columns. __F__ 6. Business rules are policies written in the employee handbook. ___T_ 7. Business rules help you determine the relationships that exist between entities. ___F_ 8. Many-to-many relationships are easily represented using a hierarchical model. ___T_ 9. One of the advantages of the hierarchical model is the ease of maintaining data integrity. ___F_ 10. Hierarchal databases became popular in the 1980s. ___F_ 11. The only relationship type supported by the hierarchical model is 1:1. ___F_ 12. The hierarchical model was the first to define a standard DML and DDL. ___T_ 13. The most important advantage of an RDBMS is the ability to let the designer operate in a human logical environment. ___F_ 14. Only 1:M and M:N relationships can be represented in a relational schema. ___T_ 15.
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This note was uploaded on 07/27/2011 for the course BUS 173 taught by Professor Essiahamouda during the Winter '11 term at UC Riverside.

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MIS 311 Quiz2 - Practice Quiz TRUE/FALSE Indicate whether the sentence or statement is true or false_T 1 Relations are related to each other by

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