Modulo13
Quiz
•
Computers
•
11th Grade
•
Practice Problem
•
Hard
Noemia Assunção
Used 2+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma base de dados é uma coleção de dados partilhados interrelacionados e usados para múltiplos objetivos
Verdadeiro
Falso
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O principal objetivo do modelo E-R é fornecer através de diagramas E-R instrumentos conceptuais que ajudem a compreender melhor o desenho de uma base de dados.
Verdadeiro
Falso
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Uma chave primária:
Pode ser nula.
É unívoca.
Não pode ser nula.
Pode ser igual a outro registo já existente.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O campo Data de nascimento, pode ser chave primária de uma entidade.
Verdadeiro
Falso
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Seleciona os atributos atómicos,
Data de nascimento
Idade
Nome
Sexo
Nº de cartão de cidadão.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A um atributo ou conjunto de atributos que podem identificar de modo unívoco os registos de uma tabela, designa-se por:
Chave
Relação
Registo
Campo
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na tabela Consultas, qual o campo que desempenha a função de chave externa.
NumCons
NumPac
NumMed
DataCons
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