Which system components do you usually prioritize for expansion to handle high traffic?

To handle high traffic, the following system components are prioritized for scaling:

• Load Balancers — distribute requests among servers.
• Caching — reduces database load and speeds up response times.
• Databases — scaling (replication, sharding) to increase throughput.
• Microservices and API Gateway — for load separation and service isolation.
• Message Queues — for asynchronous task processing and offloading.

In Go, HTTP request processing is often optimized using goroutines and efficient data structures to minimize latency.