Which term describes the concept of increasing the power of the existing resources in the working environment?

• A. Horizontal Scaling
• B. Orchestration
• C. Vertical Scaling (Scaling Up)
• D. Open SDN

Answer: (C)

Vertical scaling, or scaling up, is about increasing the power of existing resources. In practice this means upgrading a single server or resource to have more CPU, memory, or faster storage so it can handle a larger workload without adding new machines. This directly matches the idea of boosting the capacity of the current resource in the working environment.

This differs from horizontal scaling, which would mean adding more servers or instances to handle the load rather than making one server more capable. Orchestration is about managing and automating the deployment and operation of resources, which can enable scaling strategies but isn’t the act of increasing a single resource’s power. Open SDN relates to software-defined networking, not resource power scaling. For example, upgrading a server from 8GB to 32GB RAM is vertical scaling; adding another server to share requests is horizontal scaling.