
Exame de Módulo (Modelagem)
Authored by Ramon Rosa
Information Technology (IT)
9th - 12th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Qual das opções abaixo é a definição correta de uma chave primária em uma tabela relacional?
Um campo que permite valores duplicados
Um campo que permite valores nulos
Um campo que identifica de forma única cada registro na tabela
Um campo usado para calcular valores
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Uma tabela está na Primeira Forma Normal (1NF) se todos os seus atributos possuem valores atômicos.
Verdadeiro
Falso
3.
OPEN ENDED QUESTION
3 mins • 5 pts
Explique o que é a Primeira Forma Normal (1NF) e dê um exemplo de uma tabela que não está em 1NF
Evaluate responses using AI:
OFF
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
No contexto de uma tabela relacional, qual o propósito da chave estrangeira?
Identificar unicamente um registro na mesma tabela
Estabelecer um relacionamento entre duas tabelas
Armazenar dados sensíveis
Garantir a integridade de cálculos
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O Diagrama Entidade-Relacionamento (DER) é usado para modelar graficamente o esquema de um banco de dados.
Verdadeiro
Falso
6.
OPEN ENDED QUESTION
3 mins • 5 pts
Explique a diferença entre a Segunda Forma Normal (2NF) e a Terceira Forma Normal (3NF)
Evaluate responses using AI:
OFF
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
No Diagrama Entidade-Relacionamento (DER), como são representados os atributos de uma entidade?
Losangos
Retângulos
Elipses
Linhas
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