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1. Mongo DB
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2. What is Mongo DB?
MongoDB is a popular open-source NoSQL
database management system (DBMS)
designed for flexibility, scalability, and high
performance.
NoSQL stands for "not only SQL," and it
represents a category of databases that do not
adhere to the traditional relational database
model, which is based on tables with rows and
columns.

3. Features of MongoDB
➢ Document-Oriented: MongoDB stores data in documents, which are essentially
JSON-like objects with key-value pairs. These documents can have nested
structures, making it easy to represent complex data.
➢ Schema-less: Unlike traditional relational databases, MongoDB does not require
a fixed schema. This means you can add or remove fields from documents as
needed without affecting other documents in the same collection.
➢ Scalability: MongoDB is designed for horizontal scalability, which means you
can distribute your data across multiple servers or nodes in a cluster to handle
large amounts of data and high traffic loads.
➢ High Performance: MongoDB is optimized for high read and write throughput.
It uses memory-mapped files to efficiently access data, and it supports various
indexing options to speed up query performance.

4. ➢ Rich Query Language: MongoDB provides a powerful query language for retrieving
and manipulating data. You can perform queries that match specific document fields,
use aggregation pipelines for more complex transformations, and perform geospatial
queries for location-based data.
➢ Replication and High Availability: MongoDB offers features like replication and
automatic failover to ensure data availability and fault tolerance. In a replica set,
multiple MongoDB instances maintain copies of the same data to provide
redundancy.
➢ Data Consistency: MongoDB offers tunable levels of data consistency to meet
different application requirements. It supports both strong and eventual consistency
models.
➢ Community and Enterprise Editions: MongoDB is available in both open-source
community and commercial enterprise editions. The community edition is free to
use, while the enterprise edition includes additional features and support.

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