MongoDB MongoDB Atlas and Cloud Deployment 2

Question 1

What is Atlas Search in MongoDB Atlas?

Accepted Answer

A full-text search engine built on Apache Lucene, integrated directly into Atlas clusters

Answer

Atlas Search is a fully managed full-text search solution built on Apache Lucene and integrated directly into Atlas clusters. It supports fuzzy matching, autocomplete, facets, custom analyzers, and relevance scoring — all using the MongoDB aggregation pipeline with the $search stage.

Question 2

What is Atlas Data Federation?

Accepted Answer

Querying and combining data from Atlas clusters, S3 buckets, and Atlas Data Lake using MQL or SQL

Answer

Atlas Data Federation enables querying data across multiple sources — Atlas clusters, AWS S3, Azure Blob Storage, HTTP endpoints, and Atlas Online Archive — using MongoDB Query Language or SQL. Results from disparate sources are unified without ETL pipelines.

Question 3

What does Atlas Online Archive do?

Accepted Answer

Automatically moves infrequently accessed data from Atlas clusters to cost-effective cloud object storage

Answer

Atlas Online Archive automatically tiers cold data from your Atlas cluster to MongoDB-managed cloud object storage based on date or custom criteria. Archived data remains queryable via Atlas Data Federation, reducing cluster storage costs while maintaining accessibility.

Question 4

What is VPC Peering in Atlas and why is it used?

Accepted Answer

Establishing a private network connection between your cloud provider VPC and the Atlas VPC to avoid public internet traffic

Answer

VPC Peering creates a private network connection between your AWS VPC (or Azure VNet / GCP VPC) and the Atlas cluster's VPC. Traffic between your application and Atlas traverses the cloud provider's private network rather than the public internet, improving security and reducing latency.

Question 5

What is Atlas Triggers in MongoDB Atlas?

Accepted Answer

Server-side functions that execute automatically in response to database events, scheduled times, or authentication events

Answer

Atlas Triggers are server-side JavaScript functions that run automatically in response to: database events (insert, update, delete via change streams), scheduled intervals (cron-like), or authentication events (user login/creation). They are commonly used for data synchronization, notifications, and event-driven workflows.

MongoDB Practice Test

MongoDB Practice Test

MongoDB MongoDB Atlas and Cloud Deployment 2