DOL Study Guide 2026
Everything you need to pass the DOL exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 DOL Exam Format at a Glance
📚 DOL Topics to Study (69)
✍️ Sample DOL Questions & Answers
1. How should a DevOps Leader foster a security-aware culture within development teams?
Security champions embedded in teams create distributed ownership of security, while regular training keeps developers current on threats and best practices.
2. A DevOps team is experiencing friction because developers blame ops for slow deployments while ops blames developers for unstable code. Which practice most directly addresses this cultural problem?
Shared on-call rotations create mutual accountability and empathy by ensuring both developers and ops engineers experience the consequences of deployment decisions together.
3. Which Lean principle focuses on producing only what the next process step needs, when it needs it?
A pull system triggers production or work based on downstream demand, preventing overproduction and reducing inventory waste.
4. A legacy enterprise has a culture of blaming individuals when production incidents occur. Which DevOps cultural practice most directly counters this?
Blameless post-mortems shift focus from individual fault to systemic learning, creating psychological safety and encouraging honest incident reporting.
5. When using Infrastructure-as-Code (IaC) within a CI/CD pipeline, what is the purpose of running 'terraform plan' as a pipeline stage before 'terraform apply'?
Terraform plan surfaces exactly what will be created, modified, or destroyed, enabling a review gate that prevents unintended infrastructure changes from reaching production.
6. Which Kotter change model step directly addresses the risk of change fatigue during a long DevOps transformation?
Generating short-term wins sustains momentum by demonstrating tangible progress and preventing fatigue during prolonged transformations.