Exam Name: IBM Cognos 10 BI Data Warehouse Developer
Certification Provider: IBM
Corresponding Certification: IBM Cognos
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IBM Cognos 10 BI Data Warehouse Developer: C2020-625 Exam Premium File as PDF & Test Engine
Last Updated: Sep 09, 2026
No. of Questions: 84 Questions & Answers with Testing Engine
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IBM C2020-625 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Cognos 10 BI Data Warehouse Developer |
| Exam Number: | C2090-625 |
| Available Languages: | English |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 90 minutes |
| Passing Score: | 60-70% |
| Exam Format: | Scenario-based questions, Multiple choice |
| Exam Price: | USD 200-250 (varies by region) |
| Related Certifications: | IBM Certified Solution Developer - Cognos BI IBM Cognos BI Certification IBM Cognos 10 BI Data Modeler |
| Certificate Validity Period: | Does not expire (legacy IBM certification policy varies by program) |
| Sample Questions: | IBM C2020-625 Sample Questions |
| Exam Way: | Online proctored or authorized testing center (varies by region and IBM testing partner) |
| Pre Condition: | Recommended experience with IBM Cognos BI and data warehousing concepts; no strict prerequisite but prior BI experience is strongly advised. |
| Official Syllabus URL: | https://www.ibm.com/certify |
IBM C2020-625 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Warehouse Concepts | 15% | - Fact and dimension tables design principles - Dimensional modeling (star and snowflake schemas) - Data warehouse architecture overview |
| Topic 2: Reporting and Analysis | 15% | - Report Studio report development - Cognos Query Studio and Analysis Studio usage - Dashboard and interactive reporting concepts |
| Topic 3: Security and Performance Optimization | 10% | - Authentication and authorization in Cognos - Report performance tuning techniques - Query optimization strategies |
| Topic 4: ETL and Data Integration | 15% | - Data staging and loading strategies - Data quality and consistency management - Data sourcing and transformation concepts |
| Topic 5: IBM Cognos 10 BI Architecture | 20% | - Content Manager and report services - Framework Manager role in data modeling - Cognos BI components and services |
| Topic 6: Data Modeling and Framework Manager | 25% | - Business rules and calculations in models - Query subjects and query items design - Metadata modeling and relational data sources |
Your IBM Cognos 10 BI Data Warehouse Developer Questions, Answered
The C2020-625 exam, officially titled IBM Cognos 10 BI Data Warehouse Developer, is the qualifying test for the IBM Cognos certification from IBM, a credential at the Professional level. Passing it proves you have the skills employers look for in certified professionals, and it can also support progress toward related credentials such as IBM Cognos BI Certification, IBM Cognos 10 BI Data Modeler, IBM Certified Solution Developer - Cognos BI.
The IBM Cognos 10 BI Data Warehouse Developer exam gives you 90 minutes to work through 60-70 questions. That is a steady pace with little room for second-guessing, so train yourself to read each question once, flag the difficult ones, and keep moving. Before exam day, sit at least two full timed sessions in the Fast2test test engine — when the clock feels familiar, it stops being a threat.
You need 60-70% to pass, and the official registration fee is USD 200-250 (varies by region). Fall short and you pay that fee in full again for every retake, which makes solid preparation the cheaper option by far. Work through the Fast2test practice questions until you score comfortably above the passing mark, then book your seat.
Recommended experience with IBM Cognos BI and data warehousing concepts; no strict prerequisite but prior BI experience is strongly advised. Eligibility rules can change over time, so before you register, confirm the latest requirements on the official exam page: IBM C2020-625 exam overview.
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The IBM Cognos 10 BI Data Warehouse Developer syllabus is organized into 6 domains. The main areas include Security and Performance Optimization (10%), Data Warehouse Concepts (15%), and Data Modeling and Framework Manager (25%). Scroll up to the Exam Topics section above for the complete, current outline before you plan your study schedule.
IBM Cognos 10 BI Data Warehouse Developer Sample Questions:
Question 1
What is a difference between a measure element and an attribute element?
A. Attribute values can be merged by Data Manager, while measure values cannot.
B. Measure values can be merged by Data Manager, while attribute values cannot.
C. Measure values can be aggregated by Data Manager, while attribute values cannot.
D. Attribute values can be aggregated by Data Manager, while measure values cannot.
Question 2
In the Dimension Build wizard, the developer has specified the schema type as "Star schema." What will be the result of this selection?
A. The dimension will be represented by one table for each hierarchy level. Each table will have a foreign key to the level above.
B. The dimension will be represented in a table that contains only the keys of all the levels of the delivered hierarchy. The descriptions of the higher levels will reside in other tables.
C. The dimension will be represented in a single table. Each level of the delivered hierarchy will be represented by one or more columns of this table.
D. The dimension will be represented in a single table. Each row of this table will contain the ID of the member, together with the ID of its parent.
Question 3
A dimension table contains the following data:
If late arriving fact processing is enabled, what will be the value of the surrogate key assigned to the last row of fact data?
A. 11113
B. 11111
C. 11110
D. 11112
Question 4
A fact build is being manually created. What must the developer do to deliver the fact data to a relational table?
A. Create a relational table delivery using SQLTerm.
B. Add a relational table delivery module to the Connections folder.
C. Modify the fact build DataStream to include a relational table delivery.
D. Add a relational table delivery module to the fact build.
Question 5
Which of the following is a use for a fact build?
A. To deliver fact data into a metadata star.
B. To deliver fact data into a dimensional framework.
C. To acquire and transform transactional data.
D. To automate tasks related to the build process.
Solutions:
| Question 1 Answer: C | Question 2 Answer: C | Question 3 Answer: B | Question 4 Answer: D | Question 5 Answer: C |
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