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How should you prepare your GKE Standard regional cluster (spanning three zones with autoscaling enabled) to accommodate a projected 10% month-over-month user growth for six months, while maintaining 30% current CPU utilization, ensuring resilience against zone failures, minimizing user impact, and optimizing cost efficiency?
A
Verify the maximum node pool size, enable a horizontal pod autoscaler, and then perform a load test to verify your expected resource needs.
B
Because you are deployed on GKE and are using a cluster autoscaler, your GKE cluster will scale automatically, regardless of growth rate.
C
Because you are at only 30% utilization, you have significant headroom and you won't need to add any additional capacity for this rate of growth.
D
Proactively add 60% more node capacity to account for six months of 10% growth rate, and then perform a load test to make sure you have enough capacity.