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An auto scaling group is configured with a desired capacity of 4, a minimum of 2, and a maximum of 10. CPU utilisation across the group has been below 20% for an hour. What is the most likely behaviour of the scaling policy?
AAuto scaling will increase capacity to the maximum (10) regardless of utilisation
BAuto scaling will immediately terminate every running instance to save cost
CAuto scaling will replicate the group to every Region in the world
DAuto scaling will reduce the instance count toward the configured minimum (2) as long as scale-in policies and cooldowns allow
Answer & Solution
Correct answer: D. Auto scaling will reduce the instance count toward the configured minimum (2) as long as scale-in policies and cooldowns allow
When utilisation stays below a scale-in threshold, the group scales DOWN toward the minimum (not to zero, and not to max). Termination is gradual, respecting cooldowns and the configured minimum. Multi-region replication is not how auto scaling groups work.
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