Banco de Dados(Modelo Relacional)

Quiz
•
Computers
•
2nd Grade
•
Medium
Rafa Gomes
Used 1+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é um banco de dados?
Um conjunto de dados inter-relacionados
Um conjunto de tabelas
Um sistema de arquivos
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No modelo relacional, os dados são organizados em:
Tuplas
Atributos
Tabelas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cada linha de uma tabela é chamada de:
Atributo
Tupla
Chave
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cada coluna de uma tabela é chamada de:
Tupla
Chave
Relacionamento
Atributo
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chave primária:
Permite valores duplicados
Pode ser nula
Identifica unicamente cada registro
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chave estrangeira serve para:
Identificar registros únicos
Referenciar outra tabela
Garantir integridade de entidade
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O modelo relacional foi proposto por:
Peter Chen
Edgar F. Codd
Bill Gates
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