Exam NCP-MCI-7.5 Topic 1 Question 5 Discussion

Nutanix documents Storage QoS as the correct mechanism to throttle VM I/O and prevent noisy-neighbor behavior. Nutanix also documents that storage policies in Prism Central apply to Categories, and that QoS settings such as throttled IOPS can be defined in the storage policy itself. That means the administrator can create one policy, set the IOPS cap, and apply it to the category assigned to Dev VMs. Current and future VMs with that category then inherit the same behavior without one-by-one configuration. That is exactly the scalable model described in option B.
The other options do not meet the requirement as cleanly. Replication factor affects resilience, not IOPS governance. Cloning one VM's QoS is not a robust policy framework for future operations, especially when category-based automation already exists. Compression changes storage efficiency and sometimes performance characteristics, but it does not function as an enforceable per-VM IOPS cap. Because Nutanix explicitly ties QoS throttling to storage policies and category-based assignment, B is the documented and most maintainable answer.