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