PDF Version DemoWalking into the C2090-635 exam unprepared for its pace is a risk you do not need to take. The Getcertkey test engines recreate the pressure of the IBM Cognos 10 BI OLAP Developer testing environment, so when exam day arrives in 2026, it feels like just another practice session.
IBM C2090-635 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Cognos 10 BI OLAP Developer |
| Exam Number: | COG-635 / C2090-635 |
| Real Exam Qty: | 60-65 |
| Exam Duration: | 90 minutes |
| Passing Score: | 65% |
| Available Languages: | English, Japanese |
| Exam Format: | Scenario-based, Multiple Choice |
| Related Certifications: | IBM Certified Developer - Cognos BI Metadata Models IBM Certified Administrator - Cognos BI IBM Certified Solution Expert - Cognos BI |
| Certificate Validity Period: | Retired / No longer offered |
| Exam Price: | $200 USD (approximate, varies by region) |
| Recommended Training: | IBM Cognos 10 BI OLAP Development Training |
| Exam Registration: | IBM Certification Registration Pearson VUE |
| Sample Questions: |  |
| Exam Way: | Proctored at authorized Pearson VUE test centers or online proctoring (when active) |
| Pre Condition: | Basic knowledge of Cognos BI, data warehousing, and OLAP concepts; hands-on experience with IBM Cognos Transformer |
| Official Syllabus URL: | http://www-03.ibm.com/certify/exam.html?id=C2090-635 |
IBM C2090-635 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Sources | 12% | - Multiple source integration - Uniqueness and data integrity - Supported data sources |
| Topic 2: Transformer Basics | 5% | - Transformer development lifecycle |
| Topic 3: Maintenance & Advanced Techniques | 22% | - Model maintenance and updates - MUN impact and handling - Troubleshooting and optimization - PowerCube refresh and deployment |
| Topic 4: Measures and KPIs | 12% | - Define and differentiate measures - Measure properties and calculations |
| Topic 5: Security | 12% | - Secure PowerCubes and dimensions - Cognos 10 security model |
| Topic 6: Model Creation | 17% | - Publish to Cognos 10 Studios - Build basic Transformer model - Time dimension implementation |
| Topic 7: PowerCube Content Customization | 20% | - Dimension and level customization - Member properties and attributes - Hierarchy design |
C2090-635 Exam FAQs for 2026 Candidates
Which certification does the C2090-635 exam lead to?
The C2090-635 exam is the official IBM exam behind the IBM Certified Developer - Cognos BI OLAP Models certification, validating the skills measured by the IBM Cognos 10 BI OLAP Developer credential. It sits at the Professional / Intermediate level of the IBM certification program. It also connects to IBM Certified Developer - Cognos BI Metadata Models, IBM Certified Administrator - Cognos BI, IBM Certified Solution Expert - Cognos BI, so the knowledge you build here carries over to those tracks as well.
How many questions are on the C2090-635 exam, and how much time do I get?
The C2090-635 exam contains 60-65 questions to be completed within 90 minutes. Before exam day, divide the available time by the question count to work out a comfortable per-question pace, and mark any item that eats into it so you can return later instead of getting stuck. Timed sessions in the Getcertkey test engines make that pacing automatic — run at least two full-length mock exams under the clock so time pressure never becomes the reason you drop points.
What score do I need to pass the C2090-635 exam, and what does it cost?
The passing score for the C2090-635 exam is 65%, and the official registration fee is $200 USD (approximate, varies by region). Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 65 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.
Are there any prerequisites for the C2090-635 exam?
Basic knowledge of Cognos BI, data warehousing, and OLAP concepts; hands-on experience with IBM Cognos Transformer Requirements can change when IBM revises its certification program, so confirm the current eligibility rules on the official exam page before you register.
How do I register for the C2090-635 exam?
You can book the IBM Cognos 10 BI OLAP Developer exam through the official registration channels below:
As for delivery, the exam is offered in the following format: Proctored at authorized Pearson VUE test centers or online proctoring (when active). Choose the option that suits you best when you book your seat.
What official training is recommended for the C2090-635 exam?
IBM recommends the following training resources for the IBM Cognos 10 BI OLAP Developer exam:
Official courses build the foundation; the 65 practice questions from Getcertkey then show you how that knowledge is examined, so the two work best together.
Can I try the C2090-635 practice questions before I buy?
Yes. Getcertkey provides a free C2090-635 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if IBM revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.
What if I fail the C2090-635 exam, and how is my order delivered?
Every IBM Cognos 10 BI OLAP Developer purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.
Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.
What topics are covered in the C2090-635 exam?
The IBM Cognos 10 BI OLAP Developer exam blueprint is organized into 7 domains. The first three are:
- Data Sources — 12% of the exam
- Security — 12% of the exam
- PowerCube Content Customization — 20% of the exam
For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.
IBM Cognos 10 BI OLAP Developer Sample Questions:
Question 1
If a cube group based on a level in a dimension is created, how can the developer prevent another
cube from being added to the cube group?
A. Specify a category limit for the level.
B. Prevent the automatic creation of categories.
C. Exclude the dimension from auto-partitioning.
D. Ensure the level labels and category labels remain unchanged.
Question 2
What can be done to show how many retailers of each type bought a specific product each month,
quarter, or year?
A. Create a calculated measure with a Time state rollup.
B. Define a measure that counts categories.
C. Create a calculated column.
D. Specify an allocated measure as the Activity Measure.
Question 3
How can a developer rebuild an incrementally updated cube?
A. Delete the old .mdc file and recreate the entire cube.
B. Clean house and rebuild the cube.
C. Save the model, and revert to the backup .mdl file.
D. Enable time-based partitioning and rebuild the cube.
Question 4
What must be done to make the cube data available in Analysis Studio?
A. Create a data source connection to the cube in Transformer.
B. Generate a package that contains a data source connection to the cube.
C. Publish the PowerCube as a data source and a package.
D. Use the PowerCube Connection Utility to publish the cube.
Question 5
What does the developer specify when creating a test build that uses a subset of the source data?
A. The measures to include in the cube.
B. The number of categories.
C. The dimensions to include in the cube.
D. The number of records.
Solutions:
| Question 1 Answer: B | Question 2 Answer: B | Question 3 Answer: A | Question 4 Answer: C | Question 5 Answer: D |
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