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Quiz: Sistema de Bases de Datos

Yes or No

Played 4

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Verdadero o falso sobre bases de datos.

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Mexico

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Quiz: Sistema de Bases de Datos
 

Quiz: Sistema de Bases de DatosOnline version

Verdadero o falso sobre bases de datos.

by Diego Domínguez
1

Un schema describe la estructura de la base de datos, incluyendo tablas y relaciones.

2

SQL es un lenguaje estándar para consultar bases de datos relacionales.

3

Las-transacciones pueden ser no atómicas siempre que haya múltiples usuarios accediendo.

4

Las bases de datos relacionales no requieren un esquema; pueden funcionar sin estructura definida.

5

Una base de datos relacional organiza datos en tablas con filas y columnas.

6

En una base de datos, una clave foránea no necesita coincidir con ninguna clave primaria en la tabla relacionada.

7

Las transacciones en un sistema de base de datos siguen las propiedades ACID.

8

Las bases de datos NoSQL no permiten consultas basadas en índices.

9

Una consulta SELECT en SQL actualiza datos automáticamente; se usa para modificar.

10

La normalización elimina redundancia de datos dividiendo en tablas relacionadas.

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