Emergency operations must guarantee that a specific number of EC2 instances can launch in one Availability Zone during a declared emergency, separate from buying a billing discount. Which capability reserves that capacity?
Select an answer to reveal the explanation.
Short Explanation
A Capacity Reservation is a reserved parking spot in one garage (AZ) — when the emergency hits, your instances still have a place to land. Savings Plans cut the rate on usage, Spot charts guess interruption odds, and Budgets yell about money; none of those are the AZ capacity hold itself.
Full Explanation
On-Demand Capacity Reservations reserve compute capacity in a specific Availability Zone so you can launch matching instances when needed. That capacity guarantee is distinct from Reserved Instance or Savings Plans discount mechanisms. Spot interruption history and AWS Budgets address risk visibility and spend monitoring, not AZ capacity holds.