Which VPLEX mode supports active-active data access across distances?

The correct choice is B, VPLEX Geo, which is designed specifically to support active-active data access across geographically dispersed sites. VPLEX Geo allows organizations to maintain live data access across different locations, enabling seamless read and write operations from multiple sites. This capability enhances data availability and provides disaster recovery options by allowing concurrent operations, even when data is distributed across significant distances.

In contrast, VPLEX Local focuses on providing high availability and data mobility within a single site, rather than enabling active-active configurations across multiple locations. While it allows for local storage virtualization, it does not facilitate the same level of collaboration and access that VPLEX Geo offers.

VPLEX Distributed, while sharing some capabilities with VPLEX Geo, does not explicitly refer to the active-active model across distances, making it less accurate for this specific question. VPLEX Cloud, on the other hand, pertains more to integration with cloud storage solutions rather than emphasizing geographically distributed active-active access.

Thus, VPLEX Geo is the dedicated solution for ensuring simultaneous access to data across different geographical locations, making it the right answer.