
Understanding Relational Databases and Normalisation
Quiz
•
Computers
•
11th Grade
•
Practice Problem
•
Medium
Matthew Wemyss
Used 1+ times
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12 questions
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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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