Steady compute usage spans EC2, Fargate, and Lambda — the goal is max coverage with flexibility to change instance types. Which purchasing model fits best?
A.Standard Reserved Instances
RIs tie to instance attributes — less flexible.
B.Compute Savings Plans — $/hour commitment across EC2/Fargate/Lambda regardless of instance family
Correct. Broadest flexible coverage across compute.
C.Spot Instances
Spot discounts without commitment — can be interrupted.
D.Dedicated Hosts
Dedicated hosts are for licensing/isolation — most expensive.
Why this answer
Compute Savings Plans commit to spend-per-hour and apply automatically across EC2 (any family/size/region), Fargate, and Lambda — the broadest compute discount with flexibility. Standard RIs lock instance family/region; Spot is interruptible capacity, not a commitment model.
Correct answer: B · Last reviewed 2026-11-04
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