Quiz on Relational Database Model

Quiz on Relational Database Model

University

10 Qs

quiz-placeholder

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Quiz on Relational Database Model

Quiz on Relational Database Model

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 is the basic component of the relational model?

Indexes

Schemas

Views

Tables

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a key in a relational database do?

Stores data

Identifies rows uniquely

Links tables

Defines attributes

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a characteristic of a relational database table?

Two-dimensional structure

Composed of rows and columns

Persistent representation of logical relation

Contains only unique values

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a composite key?

A key that is not unique

A key composed of multiple attributes

A key used for data retrieval

A key with no attributes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is referential integrity in a relational database?

Ensuring all data is unique

Creating redundancy

Maintaining valid relationships between tables

Avoiding null values

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a data dictionary?

To store user data

To provide metadata about the database

To enforce integrity rules

To create relationships between tables

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which relationship type is considered the norm in relational database design?

1:M relationship

M:1 relationship

1:1 relationship

M:N relationship

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