
Relational Data Model Quiz
Authored by Rizwana Momin
Information Technology (IT)
University

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a Relational Data Model?
A way of organizing data into tables
A method for storing data in files
A technique for data visualization
A programming language for databases
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a tuple represent in a table?
A single record
A column in the table
A unique identifier
A set of valid values
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a primary key?
A unique identifier for each record
An attribute that links to another table
A property of an entity
A type of constraint
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a foreign key do?
Links to the primary key in another table
Ensures uniqueness in a table
Represents missing data
Defines the structure of a table
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of domain constraints?
To restrict value range or format
To ensure uniqueness
To prevent NULL values
To link tables
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of a domain constraint?
Age must be between 18 and 60
Student_ID must be unique
No primary key can be NULL
Foreign key must match existing primary key
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does entity integrity ensure?
No primary key attribute can have a NULL value
Each table must have a unique key
Values must follow a specific format
Foreign keys must match primary keys
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