Observability: Logging & Distributed Tracing

Explain the core concepts of distributed tracing, including spans, traces, and context propagation.

Instrument a sample microservice application using the OpenTelemetry SDK to generate trace data.

Set up a local Jaeger instance to ingest, visualize, and analyze traces from the instrumented application.

Design a centralized logging solution (e.g., ELK stack) to aggregate and analyze high-volume log data from a distributed system.