Preview Questions Data Modeling Concepts | Role Specific Skill

Question 1: How do you handle an entity with a complex attribute, such as an address?

Which action should you take?

Choose only one option

Use a composite attribute.

Use a multivalued attribute.

Create a separate entity for the complex attribute.

Include the complex attribute as a single field.

Question 2: How do you ensure scalability in a dimensional model for a rapidly growing dataset?

Which action should you take?

Choose only one option

Partition fact tables based on time or another logical criterion

Use a single server setup to manage all data

Increase network bandwidth to handle increased data flow

Limit the number of concurrent users accessing the dimensional model

Question 3: You need to model a scenario where an entity is a subtype of another entity. What is your approach?

Which action should you take?

Choose only one option

Use inheritance

Create a new entity to represent the subtype

Use foreign keys to link the subtype to the main entity

Use a composite key to manage the relationship

Question 4: How do you model an optional relationship between two entities?

Which action should you take?

Choose only one option

Use a mandatory relationship.

Define the foreign key as nullable.

Create a weak entity.

Use a derived attribute.

Question 5: You discover a table with partial dependencies. What normalization form addresses this issue?

Which action should you take?

Choose only one option

Apply Second Normal Form (2NF)

Apply Third Normal Form (3NF)

Apply Fourth Normal Form (4NF)

Use Boyce-Codd Normal Form (BCNF)

Question 6: How do you manage data warehouse metadata?

Which action should you take?

Choose only one option

Implement a metadata repository

Use a metadata management tool

Define a metadata management process

Regularly update and maintain metadata