Relational Database Design and Modeling for Software Engineers
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Question 1
What is the purpose of data modeling in database design?
A
To store data in a hierarchical structure.
B
To organize data into tables for better access and management.
C
To define the process of collecting data.
D
To create visual representations of data structures and relationships.
Question 2
Which level of data modeling is closest to the user’s perspective?
A
Conceptual data modeling
B
Logical data modeling
C
Physical data modeling
D
Relational data modeling
Question 3
What is the difference between logical and physical data models?
A
Logical models are business-focused, while physical models are implementation-focused.
B
Logical models include constraints, while physical models do not.
C
Logical models focus on storage, while physical models focus on relationships.
D
Logical models are used for optimization, while physical models are used for analysis.

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