Base de datos 1
Quiz
•
Instructional Technology
•
University
•
Practice Problem
•
Easy
Yennifer De León
Used 3+ times
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24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se representa gráficamente una relación?
Rombo
Círculo
Cuadrado
Rectángulo
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es el número de entidades con la cual otra entidad puede asociar mediante una
relación binaria.
Columna
Cardinalidad
Tuplas
Subconsulta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es un desencadenante, es una acción que se realiza antes o después de hacer la
acción principal de la tabla.
SQL
Entidad
Subconsulta
Disparador
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es aquella que no tiene ningún atributo (o conjunto de atributos) que identifique de
manera única cada una de las ocurrencias de la entidad.
Entidad Débil
Tupla
Entidad
Atributo
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Selecciona todos los comandos DDL
CREATE
TRUNCATE
SELECT
DROP
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es el lenguaje de manipulación de datos.
DML
DDL
SQL
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Cuáles son los tres niveles de abstracción de datos?
Interno
Conceptual o Lógico
Externo o de vista
Esquemático
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