Preview Questions Data Modeling Concepts | Role Specific Skill

Question 1: How do you handle data warehouse maintenance?

Which action should you take?

Choose only one option

Implement automated maintenance processes

Regularly monitor performance

Schedule regular data updates and backups

Use maintenance windows

Question 2: You need to represent the relationship between use cases and actors. Which UML diagram do you use?

Which action should you take?

Choose only one option

Use a use case diagram

Use a class diagram

Use a sequence diagram

Use an activity diagram

Question 3: When defining an ER model, how do you handle redundant data?

Which action should you take?

Choose only one option

Normalize the model to eliminate redundancy.

Include redundant data for simplicity.

Use composite attributes.

Use multivalued attributes.

Question 4: A client requests a detailed ER model for their employee database. Which feature would you prioritize?

Which action should you take?

Choose only one option

Clearly define primary keys for each entity

Ensure each entity has well-defined attributes

Accurately model relationships between entities

Include detailed descriptions for each attribute

Question 5: A team member suggests adding redundant attributes to an entity. What do you do?

Which action should you take?

Choose only one option

Explain the drawbacks of redundancy

Implement the suggestion and monitor the impact

Create a separate entity for the redundant attributes

Use derived attributes instead

Question 6: You need to model concurrent processes in a system. Which UML diagram is suitable?

Which action should you take?

Choose only one option

Use an activity diagram

Use a sequence diagram

Use a state diagram

Use a class diagram