Which two of the following statements are accurate descriptions of the ARX index? (Choose two.)

Describing the ARX index as storing bulk data as bit arrays is inaccurate - the ARX uses a sorted key-based index structure rather than bitmap representations.

The ARX index stores keys in sorted order with the actual metadata at the leaf level, consistent with a B-tree architecture that enables efficient file lookups and range-based queries.

While the ARX does track file locations, characterizing the index alone as the 'key enabler' of transparent data mobility is inaccurate because transparency is achieved by the ARX system as a whole, including its namespace virtualization layer, not the index in isolation.

The ARX index is 100% disposable because it is a derived metadata structure built from scanning the underlying volumes; it can be fully reconstructed at any time without impacting ongoing client file access.