Correct Answer: A.
The Performance Efficiency pillar is one of the five AWS Well-Architected Framework pillars.
Under this pillar, the focus is on the use of collected data, computing resources and performance metrics to accurately meet the system's requirements.
This extends to making informed decisions that improve the efficiency of the organization's implemented system within the AWS environment and meet the demands of technological evolution and changes.
Option B is INCORRECT because there is no BigData Management and Operations pillar within the five pillars of the Well-Architected Framework.
Option C is INCORRECT because Information and Reliability are not one of the pillars in the AWS Well-Architected Framework.
Option D is INCORRECT because the Operational excellence pillar describes how operational processes within the AWS environment can be enhanced to deliver business value.
