
Group Database Normalization Quiz
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Instructional Technology
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University
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Practice Problem
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Medium
Jigme Dema
Used 13+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main objective of normalization in a database?
To duplicate data across multiple tables
To organize data to reduce redundancy and avoid anomalies
To increase the number of tables in the database
To allow for multi-valued attributes in each column
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a condition for a table to be in First Normal Form (1NF)?
Columns can contain sets of values
All values in a column must be unique
All values in a column must belong to the same domain
Tables can have repeating groups
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Why does a table need to be in 1NF before it can be in 2NF?
1NF ensures the table is free from transitive dependencies
1NF organizes the table into atomic values, setting the foundation for higher normal forms
1NF ensures that all non-prime attributes depend on the primary key
1NF eliminates partial dependencies
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following violates Second Normal Form (2NF)?
A non-prime attribute depending on the entire primary key
A non-prime attribute depending on part of a composite primary key
A non-prime attribute depending on another non-prime attribute
All non-prime attributes directly depending on the primary key
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a Transitive Dependency?
Customer_ID → Customer_Name
Student_ID → Student_City → Student_State
Product_Name → Price
Customer_ID → Product_Name
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What does Third Normal Form (3NF) aim to eliminate?
Multi-valued attributes
Transitive dependencies
Partial dependencies
Candidate keys
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is data redundancy eliminated when moving from 1NF to 2NF?
By merging tables with similar data
By decomposing the table to eliminate partial dependencies
By adding additional columns to the table
By creating composite primary keys
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