Which of the following best defines scalability in infrastructure design?

Scalability in infrastructure design refers to the ability of a system to accommodate growth and adapt to increased demand by adding resources, such as processing power or storage, without compromising performance. This means that as the needs of the organization change—whether due to fluctuating user numbers, increased data volume, or enhanced application complexity—the infrastructure can expand appropriately.

The emphasis on the flexibility to add resources as needed captures the essence of scalability. It allows organizations to respond dynamically to their operational requirements, ensuring they can handle more workloads efficiently. By implementing scalable solutions, businesses can optimize their resource utilization and cost-effectiveness in the long run.

This concept is crucial for companies that anticipate growth or variable workloads, as it allows them to avoid overprovisioning or underutilizing their infrastructure. Being able to modify and enhance resources as required is a key aspect that differentiates scalable systems from others.