How Do NoSQL Databases Handle Variety of Big Data?

Many research papers and books say that NoSQL databases were born to support big data and it is a well-known big data tool. Like the three V’s of volume, variety, and velocity, numerous aspects describe dig data. This paper’s primary objective is to investigate how NoSQL databases handle the variety of data, namely binary unstructured data, which is typically media assets like picture, audio, and video files. We chose the NoSQL databases based on the DB engines ranking, the first database from each NoSQL type: MongoDB, Redis, Cassandra, and Neo4j.