Data Modeling: Embedding vs Referencing MCQ , MongoDB Schema Design Practice Questions

Direction: Choose the correct option

What is embedding in MongoDB data modeling?

A. Creating indexes on nested fields

B. Encrypting data fields

C. Storing related data within a single document structure

D. Storing related data in a separate collection

Direction: Choose the correct option

What is referencing in MongoDB?

A. Creating a pointer to another collection

B. Joining tables

C. Using foreign keys

D. Storing the `_id` of a related document in another document

Direction: Choose the correct option

When is embedding generally preferred over referencing?

A. When you need to normalize data

B. When data has many-to-many relationships

C. When data is large and frequently changes

D. When data is frequently accessed together and has a one-to-many relationship

Direction: Choose the correct option

What is a potential drawback of embedding too much data?

A. Document size growth leading to performance issues

B. Inability to query

C. Data duplication

D. Slower reads

Direction: Choose the correct option

Given a blog post with multiple comments, what is a common way to model this in MongoDB?

A. Both approaches can be valid depending on access patterns

B. Use a relational database

C. Store comments in a separate collection with a reference to the post

D. Embed comments as an array in the post document

Quipoin Menu