Quiz on Entity Relationship Modeling

Quiz on Entity Relationship Modeling

University

10 Qs

quiz-placeholder

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Quiz on Entity Relationship Modeling

Quiz on Entity Relationship Modeling

Assessment

Quiz

Information Technology (IT)

University

Practice Problem

Hard

Created by

Dr. Hazirah Bee Binti Yusof Ali

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the ER model form the basis of?

Entity Relationship Diagram

Relational Database

Data Warehouse

Data Mining

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of ER modeling, what does an entity refer to?

A row in a table

A single occurrence of data

A set of related data

A table in a database

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which notation represents attributes as ovals connected to an entity rectangle?

Crow's Foot notation

Chen notation

Relational notation

Object-oriented notation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of attribute must have a value?

Multivalued attribute

Required attribute

Composite attribute

Optional attribute

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for the maximum number of entity occurrences associated with one occurrence of a related entity?

Connectivity

Cardinality

Multiplicity

Degree

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which relationship classification indicates that one entity can be associated with many occurrences of another entity?

M:1

1:1

1:M

M:N

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a derived attribute?

An attribute that must be stored

An attribute that cannot be subdivided

An attribute that has multiple values

An attribute that can be calculated from others

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