Querying & Relevance Engineering — Review & Checklist

[!NOTE] This module explores the core principles of Querying & Relevance Engineering — Review & Checklist, deriving solutions from first principles and hardware constraints to build world-class, production-ready expertise.

1. Module Review

Use this review to validate that you can explain and apply the module concepts without guesswork.

Knowledge checks

• Can you explain the internals behind each major concept in this module?
• Can you identify which metrics prove your approach is working?
• Can you describe at least two failure modes and how to recover?

Implementation checklist

• Baselines documented (latency, throughput, storage, error rate)
• Rollback strategy tested
• Dashboards and alerts in place
• Runbook reviewed with on-call engineers

Next step

Continue to the next module from the Elasticsearch course index.