Which cloud concept is demonstrated by using AWS Cost Explorer?

Explanations:

Rightsizing involves analyzing resource usage to ensure that cloud resources are optimally sized and utilized. AWS Cost Explorer helps identify cost trends and usage patterns, allowing users to make informed rightsizing decisions.

Reliability refers to the ability of a system to function correctly and consistently. AWS Cost Explorer does not directly address reliability aspects but focuses on cost management.

Resilience refers to the ability to recover from failures and continue operations. AWS Cost Explorer is not designed to enhance resilience but rather to analyze and manage costs.

Modernization involves updating and improving applications and infrastructure to leverage cloud capabilities. AWS Cost Explorer is a financial tool and does not contribute to modernization efforts directly.