Load Balancing: MongoDB scales horizontally using sharding. It can run on multiple servers which helps to balance the load and also duplicating the data for keeping the system up and running in case of hardware failure. File storage: It can be utilized as a file system which includes load balancing and data replication features over multiple machines for storing files.
Aggregation: The framework enables user to obtain the kind of results for which the SQL group by clause is used. Server – side JavaScript Execution: JavaScript can be used in queries, aggregate functions (such as Map Reduce), and also directly sent to the database to be executed. Capped Collections: MongoDB supports fixed size collections called capped collections.