Preview Questions Data Modeling Concepts | Role Specific Skill

Question 1: Your dimensional model includes data from various sources. How do you ensure consistency?

Which action should you take?

Choose only one option

Implement data transformation processes

Use a common data format

Implement a data normalization strategy

Use data mapping techniques

Question 2: How do you manage changing business requirements in your dimensional model?

Which action should you take?

Choose only one option

Regularly update and review the model

Use flexible schema design

Implement versioning in the model

Apply incremental changes based on requirements

Question 3: You need to design a dimension table for your model. What is your first step?

Which action should you take?

Choose only one option

Define the key attributes of the dimension

Identify the fact tables related to the dimension

Determine the granularity of the dimension

Create a surrogate key for the dimension

Question 4: Your dimensional model needs to support data integration from external sources. What is your strategy?

Which action should you take?

Choose only one option

Use data integration tools

Implement ETL processes

Use data connectors

Apply data transformation techniques

Question 5: How do you represent a composite structure of a class in UML?

Which action should you take?

Choose only one option

Use a class diagram

Use a sequence diagram

Use a state diagram

Use an activity diagram

Question 6: You need to ensure data consistency in your data warehouse. What is your approach?

Which action should you take?

Choose only one option

Implement ACID transactions

Use data validation rules

Implement data synchronization processes

Regularly reconcile data