📋 SRE Cheat Sheet

Quick reference for SRE concepts.

Why This Cheat Sheet Matters for PCDOE

This cheat sheet covers the most important Site Reliability Engineering concepts tested on the PCDOE (Cloud DevOps Engineer) certification exam. It contains 1 sections with 6 key points. Use this as a quick-reference guide during your final review sessions.

1Sections
6Key Points

Key Concepts

  • SLI: metric measuring service performance (latency, error rate, throughput).
  • SLO: target for an SLI (e.g., 99.9% availability).
  • Error budget: 100% − SLO = allowed unreliability.
  • Toil: manual, repetitive, automatable operational work.
  • Blameless post-mortem: focus on what happened, not who caused it.
  • Golden signals: latency, traffic, errors, saturation.

Practice Site Reliability Engineering Questions

Put your knowledge to the test with practice questions.

Google Cloud Service Quick Reference

GCP organises services around Compute (GCE, GKE, Cloud Run, App Engine, Cloud Functions), Storage (Cloud Storage, Persistent Disk, Filestore), Databases (Cloud SQL, Spanner, Firestore, Bigtable, BigQuery), and Networking (VPC, Cloud Load Balancing, Cloud CDN, Cloud Interconnect). Knowing which service fits each use case is essential for passing GCP exams.

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