Understanding Relational Databases and Normalisation

Understanding Relational Databases and Normalisation

11th Grade

13 Qs

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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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13 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?

Data encryption

Normalization

Data replication

Data fragmentation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a relational database, what is a "primary key"?

A field that uniquely identifies each record in a table

A field that allows duplicate values

A field that is used to store large text data

A field that is used to store binary data

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of normalization in a relational database?

To increase data redundancy

To improve data retrieval speed

To organize data to reduce redundancy and improve integrity

To encrypt data for security

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a characteristic of a table in a relational database?

It can only have one column.

It can have multiple rows and columns.

It cannot have a primary key.

It must have only text data.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does 3NF (Third Normal Form) primarily address in database design?

Elimination of duplicate columns

Ensuring that all non-key attributes are functionally dependent only on the primary key

Ensuring that all tables have a primary key

Ensuring that all data is encrypted

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a term associated with a relational database model?

Field

Attribute

Node

Relation

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