Which Pillar of the AWS Well-Architecture Framework focuses on using computing resources in ways that meet system requirements?

Identifying the Relevant Pillar

1. Definition of the AWS Well-Architected Framework: The AWS Well-Architected Framework consists of five pillars designed to assist cloud architects in building secure, high-performing, resilient, and efficient infrastructure for their applications.

2. Analyzing the Pillars:

   • Operational Excellence: Focuses on operations in the cloud through processes and monitoring.
   • Security: Ensures the protection of data, systems, and assets.
   • Reliability: Addresses the ability of a system to recover from failures and meet customer demands.
   • Performance Efficiency: Concerns the optimal resource use for performance, taking into account changing requirements.
   • Cost Optimization: Focuses on avoiding unnecessary costs.

Final Answer

The pillar of the AWS Well-Architected Framework that focuses on using computing resources in ways that meet system requirements is Performance Efficiency. This pillar emphasizes the effective use of resources based on system requirements while also considering factors such as changing workloads, scalability, and optimal performance.