Hi Kim,

Your confusion is very common, and you are right to be cautious. The Associate Developer (ODC) exam is generally more demanding than most unofficial practice tests you find online.

Based on experience:

Practice exams

• The official OutSystems training material and quizzes are the closest in terms of intent and style, even if the wording feels simpler.
• Many third-party practice tests focus too much on syntax or definitions and do not reflect the reasoning required in the real exam.

Exam style

• Expect a good number of scenario-based questions, where you need to choose the best option, not just a correct one.
• Some questions are image-based (screens, flows, data models), requiring you to interpret what you see.
• The exam tests decision-making, best practices, and understanding of ODC concepts more than memorization.

Last-minute tips

• Focus on core fundamentals: data modeling, client vs server logic, integrations, security basics, and performance considerations.
• Be very clear on ODC-specific concepts (runtime model, constraints vs O11, deployment, logging, integrations).
• Read questions carefully, small details often change the correct answer.
• If two answers seem correct, choose the one that aligns best with OutSystems best practices, not shortcuts.

If you are consistently doing well on the official materials and understand why answers are correct, you are likely in good shape.

Good luck with the exam

Hello @Kim Sukyung,

Miguel already said it all, I’m just going to add this from my own experience.

I took the Associate Developer exam for O11, and the ODC one was earned automatically, but the idea is the same. I’m telling you this because I’ve also tried third-party exams outside the official website. Out of around 300 questions, only about 3% were actually found in the exam, and as far as I remember, those were already covered in the official documentation.

So I’d strongly recommend focusing on the official material. The exam itself is not about memorizing direct questions and answers, it really tests your understanding of the platform. Third-party questions are usually very straightforward, for example: “Service Action promotes tight or loose coupling?” or “How do you pass data from parent to child?”

The real exam, on the other hand, focuses on core concepts and real scenarios. It presents you with a situation and asks what you would do and which option represents the best practice.

Hi @Kim Sukyung ,

As far as I know, if you already hold the Associate Developer certification for O11, getting the ODC one only required completing the online training. I’m not sure if this is still valid, so it’s best to confirm directly with OutSystems.

Hi @Kim Sukyung ,

I think you should get the O11 certificate to have knowledge in Reative, then complete an ODC course, and the ODC certificate will be automatically generated once you've achieved the two points I mentioned.

Good luck!