Prueba Computacion

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	Created by Maria Alcala 3 months ago

Descripción de posibles definiciones para la prueba.

Prueba Computacion

Prueba Computacion

Question 1 of 64

¿Un sistema de BBDD es un sistema computarizado que se implementa para almacenar información, funciona como deposito de una colección de archivos. ?

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Explanation

Question 2 of 64

Seleccione las operaciones que un usuario puede hacer con una BBDD

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Explanation

Question 3 of 64

¿Una BBDD es un conjunto de datos persistentes que es utilizado por los sistemas de aplicación de las empresas para establecer consultas a los datos y presentar estadísticas correspondientes ?

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Explanation

Question 4 of 64

Indique el significado adecuado de la "persistencia" de una BBDD.

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Explanation

Question 5 of 64

Determine a que concepto pertenece la siguiente definicion; " Es un objeto o concepto del mundo real que puede ser identificado y del cual se desea almacenar información. Es presentado en tablas donde se encuentra información propia de las BBDD".

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Explanation

Question 6 of 64

¿El sinónimo de columna de una entidad es campo de una entidad ?

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Explanation

Question 7 of 64

Seleccione la definicion adecuada: "Son una ocurrencia única de la entidad".

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Explanation

Question 8 of 64

¿Por que es importante el uso de las entidades?

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Explanation

Question 9 of 64

¿El control de una BBDD es un proceso que se mantiene constante a medida que se utiliza la BBDD?

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Explanation

Question 10 of 64

¿Para dar una salida adecuada a la información de una BBDD los datos de salida deben ser iguales a los de entrada?

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Explanation

Question 11 of 64

¿Por que debe usarse una BBDD?

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Explanation

Question 12 of 64

Seleccione el concepto que alude a la siguiente definicion: "Son valores de identificación que no se repiten para los registros"

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Explanation

Question 13 of 64

Determine las reglas de la PRIMARY KEY.

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Explanation

Question 14 of 64

¿Una llave foránea es una segunda tabla que contiene la descripción de algún campo correspondiente a otra entidad y, que por tanto, origina una relación entre dos o mas tablas ?

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Explanation

Question 15 of 64

Seleccione las reglas de la FOERIGN KEY.

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Explanation

Question 16 of 64

¿Cuales son los tipos de datos que existen?

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Explanation

Question 17 of 64

Seleccione los tipos de datos que son implementados para campos autoincrementables

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Explanation

Question 18 of 64

¿Que tipo de dato de texto es mas rápido para establecer consultas en la búsqueda de campos ?

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Explanation

Question 19 of 64

¿Que tipo de dato de texto sirve para definir un campo que no se sabe la dimensión de su tamaño?

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Explanation

Question 20 of 64

Determine a que concepto pertenece la siguiente definicion;
" Es un objeto o concepto del mundo real que puede ser identificado y del cual se desea almacenar información. Es presentado en tablas donde se encuentra información propia de las BBDD".

Seleccione la definicion adecuada:
"Son una ocurrencia única de la entidad".

Seleccione el concepto que alude a la siguiente definicion:
"Son valores de identificación que no se repiten para los registros"

Seleccionar la respuesta correcta según la siguiente definicion:
"Se utiliza para definir la base de datos y los objetos relacionados"