19709596
Descripción
Test por Brad Gustafson, actualizado hace más de 1 año
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Creado por Brad Gustafson
hace más de 4 años
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Pregunta 1
Pregunta
Which of the following represents a row in a table?
Respuesta
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an attribute
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a characteristic
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a field
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a record
Pregunta 2
Pregunta
Which of the following defines a relationship in which each occurrence of data in one entityis represented by multiple occurrences of the data in the other entity?
Respuesta
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one-to-one
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one-to-many
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many-to-many
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none of the above
Pregunta 3
Pregunta
An entity is represented in an E-R model as a(n)
Respuesta
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arrow
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crow's foot
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dashed line
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none of the above
Pregunta 4
Pregunta
Which of the following is not an E-R model relationship?
Respuesta
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some-to-many
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one-to-one
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one-to-many
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many-to-many
Pregunta 5
Pregunta
Which of the following symbols represents a many-to-many relationship in an E-R model?
Respuesta
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a straight line
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dashed line
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a straight line with a crow’s foot at both ends
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a straight line with a crow’s foot at one end
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