Features of MongoDB

Create a Sample MongoDB Document

Design and insert a MongoDB document representing a user profile with nested address and hobbies fields.

Expected output: A valid MongoDB document with nested objects and arrays inserted into a collection.

Hint: Use JSON-like syntax with embedded documents and arrays.

Explain Replica Sets

Write a brief explanation of how MongoDB replica sets provide high availability.

Expected output: A clear description of replica sets and their role in fault tolerance.

Hint: Focus on data replication and automatic failover.

MongoDB uses a flexible document-oriented data model without fixed schemas, whereas relational databases use structured tables with predefined schemas.

MongoDB uses replica sets, which maintain multiple copies of data across different nodes, enabling automatic failover in case of node failure.

Sharding is the process of horizontally partitioning data across multiple servers or shards to scale out the database and handle large datasets.