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IBM COG-125 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cognos 8 BI Data Warehouse Integration | 20% | - Framework Manager and data source setup - Query performance and indexing - Optimizing warehouse for Cognos reporting |
| Topic 2: ETL Design and Implementation | 25% | - Error handling and recovery - Extract, Transform, Load processes - Data quality and cleansing - Incremental and full loads |
| Topic 3: Data Warehouse Concepts and Architecture | 20% | - OLAP vs OLTP principles - Enterprise data warehouse architecture - Metadata and data lineage - Data warehouse vs operational database |
| Topic 4: Dimensional Data Modeling | 25% | - Surrogate keys and hierarchies - Star and snowflake schemas - Fact and dimension tables - Slowly Changing Dimensions (SCD) |
| Topic 5: Deployment and Maintenance | 10% | - Security and access control - Monitoring and tuning - Backup and recovery strategies |
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