DevOps · Flashcard
What is the primary function of the Horizontal Pod Autoscaler (HPA)?
- AAdjusts the number of Pod replicas — scales out or in based on observed metrics like CPU utilization
- BAdjusts CPU and memory requests — right-sizes resource allocations based on historical usage patterns
- CAdds or removes cluster nodes — provisions infrastructure when Pods cannot be scheduled on existing capacity
- DRestarts unhealthy Pod containers — replaces failing instances based on observed health probe failures
Why this is the answer
HPA changes replica count horizontally. VPA adjusts resources vertically within a single Pod — it does not add or remove replicas.
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