What are Hadoop Core/Common utilities?

Hadoop Core/Common utilities serve as foundational components that facilitate the operation and functionality of other modules within the Hadoop ecosystem. These core utilities include important libraries and interfaces that enable various modules, such as MapReduce and HDFS (Hadoop Distributed File System), to work seamlessly together. By providing essential services and capabilities, the common utilities ensure that data processing, storage, and management tasks can be executed efficiently and effectively across different Hadoop components. This makes them critical for the overall architecture and functionality of Hadoop, as they support the integration and orchestration of various Hadoop applications and workflows.

The other choices do not align with the primary function of Hadoop Core/Common utilities. Managing user data, improving database performance, and providing data encryption are specific capabilities that may be handled by various components or tools within or alongside the Hadoop ecosystem, but they are not the primary purpose of the core utilities.