Answer / Gaurav Mathur

Hadoop and MongoDB are both big data processing systems, but they have different approaches. Hadoop is a Java-based open-source software framework for distributed storage and processing of large datasets using the MapReduce programming model. It's primarily used for batch processing and data analysis. On the other hand, MongoDB is a NoSQL database that uses JSON-like documents with optional schemas. It's designed to handle high volumes of unstructured data, and it offers real-time data access and flexible querying.

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