What option must you enable to use Azure Data Lake Storage Gen2? Global replicationData encryptionHierarchical namespace

The option you must enable to use Azure Data Lake Storage Gen2 is Hierarchical namespace.

Hierarchical namespace is a feature that allows you to organize your data into a hierarchy of directories and files in a manner similar to traditional file systems. This capability is crucial for efficient data management and access control in Azure Data Lake Storage Gen2, as it enables functionalities such as fine-grained access permissions on directories and files, improved performance for large analytics workloads, and optimized data processing.

While global replication and data encryption are also important features for data security and availability, they are not exclusive to Data Lake Storage Gen2 and do not need to be enabled specifically to utilize the hierarchical namespace feature.

In summary, for the specific functionality and benefits provided by Azure Data Lake Storage Gen2, enabling the hierarchical namespace is essential.