- Exam Code: LOT-838
- Exam Name: IBM Lotus Notes Domino 8 Developing Composite Applications
- Updated: Sep 02, 2026
- Q & A: 100 Questions and Answers
Failing the LOT-838 exam means paying the registration fee all over again. Preparing with the 100 up-to-date practice questions from Actual4Dumps is by far the cheaper route to your IBM Lotus Notes Domino 8 Developing Composite Applications.
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Lotus Notes Domino 8 Developing Composite Applications |
| Exam Number: | LOT-838 / 190-838 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 83 - 100 |
| Exam Format: | Multiple Choice, Multiple Select |
| Available Languages: | English |
| Exam Price: | $150 - $200 USD |
| Related Certifications: | IBM Certified Lotus Notes and Domino 8 Application Developer |
| Passing Score: | 70% |
| Exam Duration: | 90 minutes |
| Recommended Training: | IBM Redbooks: Composite Applications with Lotus Notes and Domino 8 Domino 8 Composite Application Development Courses |
| Exam Registration: | Prometric Registration |
| Sample Questions: | ![]() |
| Exam Way: | Computer-based testing at Prometric test centers |
| Pre Condition: | Recommended: IBM Lotus Notes Domino 8 Application Development Intermediate Skills (Exam 834) or equivalent experience |
| Section | Weight | Objectives |
|---|---|---|
| Designing & Building Composite Applications | 25% | - Work with properties, actions, and events - Assemble components and wiring - Use Domino Designer 8 for composite design |
| Composite Application Architecture & Concepts | 20% | - Notes/Domino 8 integration architecture - Component model and lifecycle - Understand composite application framework |
| Data Integration & Services | 20% | - LotusScript and Formula language usage - XML and Web Services integration - Connectivity with external systems |
| User Interface & Navigation | 15% | - Customize user interface components - Context sharing between components - Layout and navigation design |
| Security, Deployment & Troubleshooting | 20% | - Security models and access control - Deploy and publish composite applications - Debugging and performance tuning |
The IBM Lotus Notes Domino 8 Developing Composite Applications is the official IBM exam that leads to the IBM Certified Application Developer - Lotus Notes and Domino 8 certification at the Professional level. Passing it validates your skills against IBM standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as IBM Certified Lotus Notes and Domino 8 Application Developer, so it can serve as a solid step in a broader certification path.
The LOT-838 exam has 83 - 100 questions in total and must be completed within 90 minutes. That leaves only a narrow time budget per item, so train yourself to flag a difficult question, move on, and circle back later instead of getting stuck. A week or two before your test date, run at least one full timed mock exam in the Actual4Dumps desktop or online test engine under the same 90 minutes limit, and repeat until you can finish with a few minutes left for review.
The passing score for the LOT-838 exam is 70%, and the official registration fee is $150 - $200 USD. Keep in mind that a failed attempt is not discounted — retaking the exam means paying the full fee again — so it is wise not to book your seat until your practice scores sit comfortably above the passing mark. Working through the 100 questions at Actual4Dumps in timed mode is a reliable way to judge when you are truly ready.
IBM sets the following requirement for the LOT-838 exam: Recommended: IBM Lotus Notes Domino 8 Application Development Intermediate Skills (Exam 834) or equivalent experience. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at before you register.
You can register for the IBM Lotus Notes Domino 8 Developing Composite Applications through the following official channels:
The LOT-838 exam is delivered as Computer-based testing at Prometric test centers, so review the technical and check-in requirements for that format when you schedule your appointment.
IBM recommends the following official training options for the IBM Lotus Notes Domino 8 Developing Composite Applications:
Official courses build the theory, and pairing them with the 100 practice questions from Actual4Dumps turns that knowledge into exam-ready answers.
Yes. Actual4Dumps offers a free PDF demo for the IBM Lotus Notes Domino 8 Developing Composite Applications, so you can review real sample questions and judge the quality before paying anything. After your purchase, you receive 365 days of free updates — whenever the question pool changes, you get the latest version at no cost. Once that period expires, you can extend your update service at a 50% discount from your member zone.
If you take the LOT-838 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee. To qualify, submit a scanned copy of your exam enrollment slip together with your official Score Report (PDF) within 2 days after the exam date, and your claim will be processed within 7 days. Note that the guarantee applies only to the corresponding exam: attempts taken within 3 days of purchase, downloaded-but-unused materials, free resources, and expired orders are not eligible, and the candidate name must match the purchaser name. If you would rather not refund, you can exchange the product for two free exam products of equal value while keeping the update service on your original purchase.
Delivery is instant: your files are available to download right after payment and are also sent to your email within one minute. If nothing arrives within 2 hours, contact our support team (and check your spam folder first). There is no limit on the number of computers you can install the product on.
The IBM Lotus Notes Domino 8 Developing Composite Applications is organized into 5 domains. Among the first ones are Data Integration & Services (20%), Composite Application Architecture & Concepts (20%), Security, Deployment & Troubleshooting (20%), and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full LOT-838 exam outline above on this page.
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