In autoscaling, which topic involves changing the configuration of the underlying resource rather than adding or removing resources?

In autoscaling, which topic involves changing the configuration of the underlying resource rather than adding or removing resources?

• A. Horizontal Scaling
• B. Scheduled Autoscaling
• C. Vertical Scaling
• D. Reactive Autoscaling

Answer: (C)

Vertical scaling is about resizing the capacity of the existing resource—such as increasing or decreasing CPU, memory, or storage for a single pod or VM—without changing the number of running instances. This contrasts with horizontal scaling, which adds or removes instances to handle load. Scheduled autoscaling and reactive autoscaling focus on when to scale the number of instances, not on altering the resource limits of each one. So the described topic is vertical scaling.

Vertical scaling is about resizing the capacity of the existing resource—such as increasing or decreasing CPU, memory, or storage for a single pod or VM—without changing the number of running instances. This contrasts with horizontal scaling, which adds or removes instances to handle load. Scheduled autoscaling and reactive autoscaling focus on when to scale the number of instances, not on altering the resource limits of each one. So the described topic is vertical scaling.