Preview Questions Data Modeling Concepts | Role Specific Skill

Question 1: You are tasked with modeling a database for an e-commerce application. How do you represent the relationship between Orders and Products?

Which action should you take?

Choose only one option

Use a join table to handle the many-to-many relationship

Directly link Orders to Products with foreign keys

Represent Products as an attribute of Orders

Create a composite entity to manage the relationship

Question 2: You are tasked with reducing the size of your database without losing data integrity. What normalization form do you use?

Which action should you take?

Choose only one option

Apply normalization up to Third Normal Form (3NF)

Apply normalization up to Second Normal Form (2NF)

Apply normalization up to Fourth Normal Form (4NF)

Use Boyce-Codd Normal Form (BCNF)

Question 3: Your database needs to support high availability. What is your strategy?

Which action should you take?

Choose only one option

Implement replication

Use load balancing

Implement clustering

Use backup and recovery processes

Question 4: You are tasked with creating an ER model for a new e-commerce application. What?s your first step?

Which action should you take?

Choose only one option

Identify the main entities such as Customer, Order, and Product.

Define the relationships between the entities.

Determine the attributes of each entity.

Validate the model with stakeholders.

Question 5: How do you handle many-to-many relationships in your dimensional model?

Which action should you take?

Choose only one option

Use a bridge table

Use a snowflake schema

Implement a hybrid schema

Use multiple fact tables

Question 6: In an ER model for a school, how do you represent that a Teacher can teach multiple Classes, but each Class is taught by one Teacher?

Which action should you take?

Choose only one option

One-to-One relationship

One-to-Many relationship

Many-to-One relationship

Many-to-Many relationship