Why This Cheat Sheet Matters for DOP-C02
This cheat sheet covers the most important Systems Manager concepts tested on the DOP-C02 (AWS DevOps Engineer Professional) certification exam. It contains 4 sections with 16 key points that you should memorize before exam day. Practice Run Command, Automation, Patch Manager, State Manager, Parameter Store, Session Manager, OpsCenter, and fleet management at scale. Use this as a quick-reference guide during your final review sessions.
4Sections
16Key Points
Run Command
- Execute commands on managed instances without SSH
- Rate control: concurrency + error threshold
- Output to S3 or CloudWatch Logs
- Common documents: AWS-RunShellScript, AWS-RunPowerShellScript
Automation
- Multi-step runbooks with branching and approval steps
- Actions: aws:executeScript, aws:runCommand, aws:invokeLambdaFunction, aws:approve
- Rate control for bulk operations
- EventBridge integration for event-driven automation
Patch Manager
- Patch baselines: auto-approval rules, approved/rejected patches
- Maintenance windows: scheduled patching with targets and tasks
- Compliance reporting: patch compliance across fleet
- Scan and install modes
Parameter Store
- Standard (free, 10K limit) vs Advanced (paid, 100K, policies)
- Types: String, StringList, SecureString (KMS encrypted)
- Parameter policies: expiration, notification, no-change notification
- Hierarchical naming: /env/app/key — use GetParametersByPath
Practice Systems Manager Questions
Put your knowledge to the test with practice questions.