At AWS re:Invent, the MongoDB team attended the world's foremost cloud computing conference and answered various questions from attendees. They discussed the benefits of using MongoDB Atlas, a cloud-based database service that offers a rich query language, native aggregation functionality, secondary indexing support, robust tooling, and flexibility in choosing infrastructure vendors. The team also addressed common concerns such as security, backups, and migration to the cloud. Additionally, they compared MongoDB Atlas favorably to third-party hosted MongoDB services due to its built-in expertise, cost-effectiveness, isolation of VPCs, and timely access to security patches and features.