What should you enable to enhance service availability for a stateless web API if timeouts are occurring due to high request volume?

To enhance service availability for a stateless web API experiencing timeouts due to high request volume, enabling VPC Flow Logs with a sample volume scale of 1.0 on the production VPC network's frontend and backend subnets is an effective approach. This setting captures all network traffic to and from the specified subnets without filtering, providing comprehensive visibility into the traffic patterns and potential bottlenecks that may be causing service disruptions.

By choosing a volume scale of 1.0, you ensure that you are gathering complete data for analysis, which is crucial for identifying issues like congestion, excessive latency, or unexpected traffic spikes. This information can help in making informed decisions regarding scaling resources, fine-tuning configurations, or implementing load balancing strategies to better handle increased demand.

In contrast, enabling logs with a sample volume scale of 0.5 would only capture half of the traffic, which may lead to an incomplete understanding of the performance issues. Furthermore, concentrating solely on VPC Flow Logs without considering the application-level monitoring (like global monitoring logs) may limit insight into the effectiveness of the API itself under varying loads. Thus, the chosen option optimally balances the need for thorough analysis while focusing specifically on the relevant production environment, making it the best