IBM C2020-625 Exam Details & Actual Exam Questions

  • Exam Code/Number: C2020-625
  • Exam Name/Title: IBM Cognos 10 BI Data Warehouse Developer
  • Certification Provider: IBM
  • Corresponding Certification: IBM Cognos
  • Exam Questions: 84
  • Updated On: Sep,06 2026
  • Certification Level: Professional

IBM Cognos 10 BI Data Warehouse Developer Exam Questions

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IBM C2020-625 Exam Overview:

Certification Vendor:IBM
Exam Name:IBM Cognos 10 BI Data Warehouse Developer (Cognos 10 BI Data Warehouse Developer Specialty Exam)
Exam Number:C2020-625
Available Languages:English
Exam Duration:90 minutes
Exam Format:Multiple choice, Scenario-based questions
Related Certifications:IBM Cognos BI Developer
IBM Cognos 10 BI Reporting Professional
Recommended Training:IBM Cognos Training Courses
Exam Registration:IBM Certification Portal
Sample Questions:IBM C2020-625 Sample Questions
Exam Way:Online proctored or test center (availability depends on region and IBM testing partner)
Pre Condition:Basic understanding of data warehousing and relational databases is recommended. Prior experience with IBM Cognos BI is beneficial.
Official Syllabus URL:https://www.ibm.com/certify

IBM C2020-625 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security and Administration- Security models
  • 1. Data-level security
    • 2. Object-level security
      Topic 2: Data Integration and ETL Concepts- Data extraction and transformation
      • 1. Data cleansing and loading strategies
        • 2. ETL tools overview
          Topic 3: Data Warehousing Fundamentals- Data warehouse architecture
          • 1. ETL pipeline overview
            • 2. OLTP vs OLAP systems
              - Dimensional modeling concepts
              • 1. Star schema and snowflake schema
                • 2. Fact and dimension tables
                  Topic 4: Performance Optimization- Query optimization techniques
                  • 1. Caching strategies
                    • 2. Model tuning for performance
                      Topic 5: Reporting and Analysis- Report creation
                      • 1. Prompt pages and filters
                        • 2. List, crosstab, and chart reports
                          Topic 6: IBM Cognos Architecture- Cognos BI components
                          • 1. Report Studio and Framework Manager
                            • 2. Cognos Connection and Gateway
                              Topic 7: Framework Manager Modeling- Relationships and query subjects
                              • 1. Determinants and joins
                                • 2. Model validation techniques
                                  - Metadata modeling
                                  • 1. Importing metadata from relational sources
                                    • 2. Creating namespaces and packages


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