9. Common FAQs About MongoDB 📝

Intermediate

Q1: Is MongoDB suitable for transactional applications?

  • Yes, with recent versions, MongoDB supports multi-document ACID transactions, making it feasible for many transactional needs.

Q2: How does MongoDB ensure data consistency?

  • Through write concern and transaction settings, developers can control acknowledgment and durability levels.

Q3: Can MongoDB replace traditional relational databases?

  • Suitable for many use cases, but relational databases are better for complex joins and strict schemas.

Q4: What are the main challenges when scaling MongoDB?

  • Challenges include managing sharding keys, balancing data distribution, and ensuring transaction consistency across shards.

Q5: How do I secure MongoDB?

  • Use authentication, authorization, encrypted connections (TLS/SSL), and enable access control to protect data.

This FAQ provides quick insights into common concerns and best practices for MongoDB deployment and administration.