Which term describes a technology's ability to perform under an expanded set of use cases?

• A. Flexibility
• B. Scalability
• C. Interoperability
• D. Availability

Answer: (B)

Scalability is the ability of a technology to grow and handle a broader set of use cases or higher workload without sacrificing performance. When a system scales well, it can support more users, more data, or new features by adding resources or reconfiguring its architecture—think adding more servers (horizontal scaling), upgrading hardware (vertical scaling), or using elastic cloud services that automatically provision capacity. This ensures response times and throughput stay acceptable even as demand expands or requirements evolve. By contrast, flexibility means adapting to different needs or environments, interoperability is about working with other systems, and availability focuses on keeping the system up and reachable.