Troubleshoot and optimize AWS cross-AZ traffic

AWS Regions are distinct geographical areas where AWS hosts multiple data centers, while Availability Zones (AZs) are isolated data centers within a region, designed to be independent and resilient to failures. Deploying resources across multiple AZs within a region enhances availability and fault tolerance, allowing applications to remain operational even during disruptions. Cross-AZ traffic, involving data transfer between AZs, is crucial for performance optimization, as it impacts latency, reliability, and costs. AWS provides various strategies to optimize cross-AZ traffic, such as using VPC Peering, Direct Connect, and Elastic Load Balancing, while tools like AWS Trusted Advisor and AWS Cost Explorer help manage data transfer costs. Lightlytics further aids in understanding and optimizing cloud costs and network traffic by offering insights into real-time configurations and activity logs, enabling businesses to achieve scalable and cost-effective AWS architectures.