Simulate the real AWS Certified DevOps Engineer Professional DOP-C02 exam with full-length timed sessions. Questions drawn proportionally from all 6 official blueprint domains — the same mix you'll face on test day.
Simulate real exam conditions
For the most realistic DOP-C02 simulation, start a 60 or 120-question session, put away all notes, set a timer matching the real exam duration (180 minutes), and commit to each answer before moving forward. This trains the time management and decision-making skills the real exam tests.
This free DOP-C02 mock exam uses the same question distribution as the real AWS Certified DevOps Engineer Professional DOP-C02 exam. Each session draws questions proportionally from all 6 official blueprint domains published by Amazon Web Services, so the topic mix you see accurately reflects what you'll face on test day.
DOP-C02 Domain Distribution
Configuration Management and IaC
Resilient Cloud Solutions
Monitoring and Logging
Incident and Event Response
Security and Compliance
SDLC Automation
Every question is written by certified engineers against the 2026 DOP-C02 exam objectives. These are original practice questions — not dumps — so you build real understanding rather than memorising answers.
Both the mock exam and practice test use the same question bank. The difference is in how you use them — and when to use each during your DOP-C02 study plan.
Practice test — for learning
Use the DOP-C02 practice test when you are studying a domain. Answer questions, read every explanation immediately, and build understanding. Do 10–30 questions per domain per session. This is your primary study tool for the first 4 weeks.
Go to practice test →Mock exam — for simulation
Use the DOP-C02 mock exam in the final 1–2 weeks before your test date. Complete a 60 or 120-question session without stopping, manage your time, then review all results at the end. This builds exam-day stamina and surfaces final weak spots.
Start 120-question mock →Try these sample questions from the mock exam bank. Commit to an answer before revealing the explanation.
A company uses AWS CloudFormation to deploy a multi-tier web application. The template includes a nested stack for the database layer. When updating the stack, the database stack fails with a 'CREATE_FAILED' status, but the parent stack continues updating other resources. What is the most likely cause and best practice to prevent this?
Select an answer to reveal the explanation
A company runs a critical web application on EC2 instances behind an Application Load Balancer (ALB) with Auto Scaling. During a recent traffic spike, the application became unavailable for 10 minutes. Analysis shows that the ALB's healthy host count dropped to zero because the instances failed health checks due to high CPU load. What is the MOST effective design change to improve resilience during future traffic spikes?
Select an answer to reveal the explanation
A company is running a critical web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The DevOps team wants to monitor HTTP 5xx errors and receive alerts when the error rate exceeds 5% over a 5-minute period. Which combination of services and configurations should be used to meet these requirements?
Select an answer to reveal the explanation
A company uses an Auto Scaling group with a dynamic scaling policy based on a custom CloudWatch metric. After a recent deployment, the metric spikes unexpectedly, causing the Auto Scaling group to launch several EC2 instances. The operations team wants to quickly determine whether the spike was caused by a real load increase or a deployment issue. What is the MOST efficient way to investigate this?
Select an answer to reveal the explanation
A company is using AWS Organizations with multiple accounts. The Security team wants to centrally manage IAM roles that can be assumed by users in member accounts. Which solution should be used to enforce that only specific roles can be assumed across accounts, while ensuring that the policy updates are automatically applied to all accounts?
Select an answer to reveal the explanation
A company uses AWS CodePipeline with a multi-branch strategy. A new feature branch triggers a pipeline that runs unit tests and deploys to a test environment. The deployment step uses AWS CodeDeploy with a deployment group configured for in-place deployment to Amazon EC2 instances. The deployment fails intermittently with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The instances are healthy and pass health checks. What is the most likely cause?
Select an answer to reveal the explanation
Answer all 6 questions to see your domain score breakdown
Sitting the DOP-C02 under real exam conditions is a skill in itself. Candidates who underperform often do so not because of knowledge gaps, but because of poor time management or test anxiety. Use your final mock exam sessions to address both.
The DOP-C02 exam lasts 180 minutes. Do not spend more than 90 seconds on any single question on the first pass. Flag difficult ones and return to them after completing the rest.
On every question, immediately eliminate obviously wrong choices. Even if you are unsure between two options, narrowing to two doubles your odds. Most DOP-C02 distractors contain a subtle error — re-read the scenario constraint before committing to the answer that sounds most familiar.
Amazon Web Services writes many DOP-C02 questions as realistic scenarios. Read the final sentence first — it tells you what is being asked. Then re-read the scenario with the question in mind to avoid wasting time on irrelevant details.
The real DOP-C02 is a mental marathon lasting 180 minutes. In the week before your exam, complete at least two full timed mock sessions on separate days to build concentration stamina. If you cannot stay focused for 180 minutes in practice, you will struggle on exam day.
Questions
75
On the real exam
Time limit
180 min
2.4 min per question
Passing score
750/1000
Scaled scoring
The DOP-C02 uses scaled scoring — your raw percentage correct is converted to a score out of 1000. Consistently scoring above 80% on mock exams puts you well above the 750/1000 threshold, giving you a buffer for any unexpected question types on the real exam.
Yes. Courseiva provides free DOP-C02 mock exam questions across all official exam domains. The platform includes timed simulation, per-domain score breakdown, missed-question review, and readiness tracking. No account required — free forever, supported by advertising.
The practice test is optimised for learning: you see explanations after each question immediately. The mock exam is optimised for simulation: you answer all questions under time pressure and review at the end. Use practice tests for studying and mock exams for benchmarking.
Aim for consistent scores of 80% or above on full-length DOP-C02 mock exams before booking your test date. The official passing score of 750/1000 corresponds to roughly 72–75% correct answers, so an 80% buffer accounts for difficulty variation and question styles on the real exam.
Most candidates who pass DOP-C02 on their first attempt complete 3–5 full-length mock exams in the two weeks before their test. This is enough to identify final weak spots, build stamina, and verify readiness without over-stressing or running out of fresh questions.
No — all Courseiva questions are original, written by certified engineers against public Amazon Web Services exam blueprints. Exam dumps are memorised real exam questions shared illegally. Using dumps violates your Amazon Web Services certification agreement and can result in your certification being revoked. Our questions make you genuinely competent, not just test-day lucky.
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