IBM COG-125 : IBM Cognos 8 BI Data Warehouse Developer

  • Exam Code: COG-125
  • Exam Name: IBM Cognos 8 BI Data Warehouse Developer
  • Updated: Oct 23, 2026
  • Q & A: 84 Questions and Answers

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IBM COG-125 Exam Syllabus Topics:

SectionWeightObjectives
Deployment and Maintenance10%- Monitoring and tuning
- Backup and recovery strategies
- Security and access control
Dimensional Data Modeling25%- Slowly Changing Dimensions (SCD)
- Surrogate keys and hierarchies
- Star and snowflake schemas
- Fact and dimension tables
ETL Design and Implementation25%- Data quality and cleansing
- Incremental and full loads
- Extract, Transform, Load processes
- Error handling and recovery
Data Warehouse Concepts and Architecture20%- Metadata and data lineage
- Enterprise data warehouse architecture
- Data warehouse vs operational database
- OLAP vs OLTP principles
Cognos 8 BI Data Warehouse Integration20%- Optimizing warehouse for Cognos reporting
- Query performance and indexing
- Framework Manager and data source setup

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