Which term describes a committed reservation that goes unused for the time?

Which term describes a committed reservation that goes unused for the time?

• A. Wasted Usage
• B. Reservation Waste
• C. Reservations Unused/Unutilized / Reservation Vacancy
• D. On-Demand Rate

Answer: (C)

The main idea here is reservation waste—the situation where you commit capacity with reserved pricing (like Reserved Instances or Savings Plans) but your actual usage is lower than what you reserved. When that happens, the reserved portion sits idle and you don’t get the full discount, which means you’ve effectively wasted part of the commitment. The term that best captures this idle, unused reservation state is “Reservations Unused/Unutilized / Reservation Vacancy.” It clearly communicates that the reservation remains in place but isn’t being utilized. This concept matters in cloud cost management because reservations are meant to reduce costs, not just lock in capacity. When you see unused reservations, you can adjust by selling or exchanging reservations, shifting workloads to match the reserved capacity, or moving to a more appropriate pricing model. The other options don’t fit as precisely: “Wasted Usage” is a more general misallocation of resources, not specifically about unused reserved capacity; “Reservation Waste” could be used but is less standard; and “On-Demand Rate” describes a pricing model unrelated to the status of reservations.

The main idea here is reservation waste—the situation where you commit capacity with reserved pricing (like Reserved Instances or Savings Plans) but your actual usage is lower than what you reserved. When that happens, the reserved portion sits idle and you don’t get the full discount, which means you’ve effectively wasted part of the commitment. The term that best captures this idle, unused reservation state is “Reservations Unused/Unutilized / Reservation Vacancy.” It clearly communicates that the reservation remains in place but isn’t being utilized.

This concept matters in cloud cost management because reservations are meant to reduce costs, not just lock in capacity. When you see unused reservations, you can adjust by selling or exchanging reservations, shifting workloads to match the reserved capacity, or moving to a more appropriate pricing model. The other options don’t fit as precisely: “Wasted Usage” is a more general misallocation of resources, not specifically about unused reserved capacity; “Reservation Waste” could be used but is less standard; and “On-Demand Rate” describes a pricing model unrelated to the status of reservations.