# ch4test - 1 3.1 , StudentResponse True Value 100...

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1. 3.1   All relations are tables, but not all tables are relations.  Student Response Value Correct Answer True  100%  True Score: 10/10    2. 3.2   A characteristic of a relation is that the cells of the relation hold a single value.  Student Response True  Score: 10/10    3. 3.3   Attribute Y is functionally dependent on attribute X if the value of attribute X determines the value of Y.  Student Response True  Score: 10/10    4. 3.4   Functional dependencies can involve groups of attributes.

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Student Response True  Score: 10/10    5. 3.5   A determinant of a functional dependency may or may not be unique in a relation.  Student Response True  Score: 10/10    6. 3.6   A relation is a three-dimensional table.  Student Response False  Score: 10/10    7. 3.7   A characteristic of a relation is that the rows of a relation may hold identical values.  Student Response False
Score: 10/10    8. 3.8   The columns of a relation are sometimes called "tuples."  Student Response False  Score: 10/10    9. 3.9   A tuple is a group of one or more columns that uniquely identifies a row.  Student Response False  Score: 10/10    10. 3.10

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## This note was uploaded on 10/24/2010 for the course CET 4427 taught by Professor Staff during the Spring '08 term at University of Central Florida.

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ch4test - 1 3.1 , StudentResponse True Value 100...

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