Understanding Relational Databases and Normalisation

Understanding Relational Databases and Normalisation

11th Grade

12 Qs

quiz-placeholder

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Understanding Relational Databases and Normalisation

Understanding Relational Databases and Normalisation

Assessment

Quiz

Computers

11th Grade

Practice Problem

Medium

Created by

Matthew Wemyss

Used 1+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a major limitation of a file-based approach to data storage?

It allows for too much data redundancy.

It provides excellent data integrity.

It supports complex queries efficiently.

It ensures data consistency across all files.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which feature of a relational database helps to eliminate data redundancy?

Flat file storage

Normalization

Data encryption

File indexing

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a relational database, what is a "tuple"?

A column in a table

A row in a table

A relationship between tables

A database schema

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an Entity-Relationship (E-R) diagram primarily represent?

The physical layout of a database

The relationships between data entities

The user interface of a database application

The security protocols of a database

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a characteristic of a table in Third Normal Form (3NF)?

It contains transitive dependencies.

It has no repeating groups.

It has no partial dependencies.

It has no transitive dependencies.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of normalization in database design?

To increase data redundancy

To improve data retrieval speed

To reduce data anomalies

To enhance data encryption

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a component of a relational database model?

Tables

Fields

Nodes

Relationships

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