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Actividad de Aprendizaje 2 Diseño y Modelo de Datos Fundamentos de informatica

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Actividad de Aprendizaje 2 Diseño y Modelo de Datos Fundamentos de informatica

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Actividad de Aprendizaje 2 Diseño y Modelo de Datos Fundamentos de informatica
 

Actividad de Aprendizaje 2 Diseño y Modelo de Datos Fundamentos de informaticaOnline version

Actividad de Aprendizaje 2 Diseño y Modelo de Datos Fundamentos de informatica

by Adriana García Vargas
1

El diseño de una base de datos busca principalmente:

2

La característica del diseño que permite representar adecuadamente la realidad con conceptos suficientes es:

3

Un modelo de datos se define como:

4

La primera tarea en el diseño conceptual de una base de datos es:

5

El dominio de un atributo se refiere a:

6

Una entidad débil se caracteriza por:

7

Un atributo compuesto se distingue por:

8

La clave primaria debe:

9

Una superclave se define como:

10

En un diagrama E-R, un rombo representa:

11

Una relación ternaria implica que participan:

12

La correspondencia 1:N indica que:

13

Un atributo multivaluado se caracteriza por:

14

El concepto de entidad fuerte implica:

15

La etiqueta (0,n) en una relación expresa:

16

El rol en una interrelación sirve para:

17

Una ventaja del diagrama E-R es que:

18

Un atributo derivado se obtiene:

19

Una clave foránea se utiliza para:

20

La última tarea del diseño conceptual incluye:

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