
Database Models Quiz
Quiz
•
Information Technology (IT)
•
University
•
Practice Problem
•
Easy
Ramlah Md Zain
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the primary purpose of a data model?
To store data in tables
To create user interfaces
To describe the structure, relationships, semantics, and constraints of data
To optimize database performance
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At which levels does database design occur according to the video?
Physical, logical, and view levels
Conceptual, implementation, and user levels
Hardware, software, and network levels
Data, information, and knowledge levels
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT mentioned as one of the four main categories of data models discussed in the presentation?
Relational model
Entity-relationship model
Object-based data model
Hierarchical data model
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the relational model, how are relationships between data represented?
As separate objects
As tables
As attributes
As hierarchies
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the relational model referred to as a "record-based model"?
Because it only stores historical records
Because it uses fixed format records with several data types
Because it records all database transactions
Because it is based on audio recordings
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of the Entity-Relationship (ER) model in database management?
For data storage
For query optimization
For database design
For user authentication
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an ER model, what represents the relationship between entities?
Attributes
Tables
Fields
Connecting lines or verbs (e.g., "works for", "manages")
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