MongoDB is an open-source and cross-platform database that uses a document-oriented data model. It is a kind of NoSQL database. Being a NoSQL database, it avoids the relational database’s table-based structure to adapt JSON-like documents that offer dynamic schemas which it calls BSON.
BSON provides a binary representation of JSON-like documents. In general, documents contain sets of key-value pairs and are the basic unit of data in MongoDB. It was turned into one of the most popular NoSQL databases, being used as the back-end for many giant websites comprising eBay.
It is a document database in which one collection holds different documents.
There may be a difference between the number of fields, size, and content of various documents.
It can hold large volumes of structured, semi-structured, and unstructured data.
It offers agile sprints, quick iteration, and frequent code pushes.
It allows horizontal scalability by using a technique called sharding.
It provides ACID properties at the document level.
It uses internal memory for storing working sets, and that is the reason behind its fast access.
It provides the facility of a deep query as it supports a powerful dynamic query on documents.
It supports the common authentication methods like AD, LDAP, and certificates.
It is a cost effective solution as it enhances flexibility and decreases cost on hardware as well as storage.