Which of the following data stores is not utilized by the Marine Corps?

The selection of vVol as the data store not utilized by the Marine Corps is accurate based on the context of storage technologies used by military units.

Virtual Volumes (vVol) is a storage paradigm that integrates storage with virtual machine management. While it offers efficient management of storage arrays and works well with specific virtualization environments, its adoption can be limited in military applications where established technologies like VMFS (VMware File System), vSAN (VMware Virtual Storage Area Network), and NFS (Network File System) have been more traditionally integrated. These technologies often provide the requisite performance, data management, and operational compatibility with existing infrastructure used by the Marine Corps.

In contrast, VMFS is designed specifically for VMware environments, allowing multiple virtual machines to share the same storage resources. vSAN is known for its capability to provide a hyper-converged infrastructure, which combines storage and compute resources. NFS, being a widely adopted file system protocol, facilitates easy sharing of files among different systems. This deep integration and compatibility with existing setups make these technologies more suitable for the Marine Corps compared to vVol, which might not have been fully deployed or supported in their environments as of the knowledge cut-off.