"Mastering MongoDB 3.x" is your comprehensive guide to mastering the world of MongoDB, the leading NoSQL database. This book equips you with both foundational and advanced skills to effectively design, develop, and manage MongoDB-powered applications. Discover how to build fault-tolerant systems and dive deep into database internals, deployment strategies, and much more. What this Book will help me do Gain expertise in advanced querying using indexing and data expressions for efficient data retrieval. Master MongoDB administration for both on-premise and cloud-based environments efficiently. Learn data sharding and replication techniques to ensure scalability and fault tolerance. Understand the intricacies of MongoDB internals, including performance optimization techniques. Leverage MongoDB for big data processing by integrating with complex data pipelines. Author(s) Alex Giamas is a seasoned database developer and administrator with strong expertise in NoSQL technologies, particularly MongoDB. With years of experience guiding teams on creating and optimizing database structures, Alex ensures clear and practical methods for learning the essential aspects of MongoDB. His writing focuses on actionable knowledge and practical solutions for modern database challenges. Who is it for? This book is perfect for database developers, system architects, and administrators who are already familiar with database concepts and are looking to deepen their knowledge in NoSQL databases, specifically MongoDB. Whether you're working on building web applications, scaling data systems, or ensuring fault tolerance, this book provides the guidance to optimize your database management skill set.