All 5 domains
19 official objectives
66–88 hrs suggested study
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Domain 01
~20%
Section 1 tests how a DevOps engineer lays the foundation: folders and projects, shared networking, service accounts, infrastructure as code, the CI/CD tool stack, multiple environments and secure developer workspaces with Gemini assistance.
Inside this domain
- Designing the overall resource hierarchy for an organization
- Managing infrastructure
- Designing a CI/CD architecture stack in Google Cloud, hybrid, and multi-cloud environments
- Managing multiple environments (e.g., staging, production)
- and 1 more objectives
Watch for Per-project log sinks
- Objectives
- 5
Read the domain guide →
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Domain 02
~25%
Section 2 tests designing, running and securing delivery pipelines for applications, infrastructure and ML workloads: triggers, approvals, release strategies, deployment auditing, secret handling and software supply chain controls.
Inside this domain
- Designing pipelines
- Implementing and managing pipelines
- Managing pipeline configuration and secrets
- Securing the deployment pipeline
Watch for Secrets in the image
- Objectives
- 4
Read the domain guide →
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Domain 03
~18%
Section 3 tests Google's SRE approach: defining SLIs and SLOs, spending error budgets, weighing the cost of reliability, planning capacity and autoscaling, and reducing user impact during incidents.
Inside this domain
- Balancing change, velocity, and reliability of the service
- Managing service lifecycle
- Mitigating incident impact on users
Watch for Chasing more nines
- Objectives
- 3
Read the domain guide →
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Domain 04
~25%
Section 4 tests collecting and using telemetry on Google Cloud: logs, metrics, traces, synthetic monitors, dashboards and alerts, AI-assisted analysis with Gemini Cloud Assist, and troubleshooting across infrastructure, pipelines and applications.
Inside this domain
- Instrumenting and collecting telemetry
- Managing and analyzing logs
- Managing metrics, dashboards, and alerts
- Capturing and analyzing distributed traces
- and 1 more objectives
Watch for Exclude audit logs to save money
- Objectives
- 5
Read the domain guide →
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Domain 05
~12%
Section 5 tests gathering performance data and applying FinOps on Google Cloud: Active Assist recommendations, observability costs, Spot VMs, committed and sustained use discounts, network tiers and per-workload tuning.
Inside this domain
- Collecting performance information in Google Cloud
- Implementing FinOps practices for optimizing resource utilization and costs
Watch for Spot for everything
- Objectives
- 2
Read the domain guide →
Domain names, weights and objectives come from Google Cloud's official outline (Professional Cloud DevOps Engineer exam guide (current, undated; includes ML workloads and FinOps)). Question counts and study hours are editorial planning estimates, not official figures. Last reviewed October 2026.