Preview Questions Data Modeling Concepts | Role Specific Skill

Question 1: How do you ensure data quality in your dimensional model?

Which action should you take?

Choose only one option

Implement data validation rules

Use ETL processes to cleanse data

Regularly audit and reconcile data

Apply data profiling techniques

Question 2: 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 3: You need to ensure referential integrity in your ER model. What is your approach?

Which action should you take?

Choose only one option

Use foreign keys to enforce relationships

Define unique constraints on primary keys

Regularly audit the database

Implement triggers to maintain integrity

Question 4: How do you ensure database security?

Which action should you take?

Choose only one option

Implement access controls

Use encryption

Regularly audit security

Implement data masking

Question 5: You notice that your database has redundant data. What normalization technique do you use first?

Which action should you take?

Choose only one option

Apply First Normal Form (1NF)

Apply Second Normal Form (2NF)

Apply Third Normal Form (3NF)

Use Boyce-Codd Normal Form (BCNF)

Question 6: How do you manage database performance?

Which action should you take?

Choose only one option

Optimize queries

Use indexing

Implement caching

Regularly monitor performance