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Cisco 642-991 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Center Architecture and Modularity | 15% | - Data center layered architecture - Scalability and high availability models - Modular design principles |
| Topic 2: Design Methodology | 6% | - Data center design requirements - Characterizing existing infrastructure - Business trends and requirements |
| Topic 3: Core Layer Design | 18% | - Routing protocols and design - Multicast and traffic engineering - Core layer characteristics and functions |
| Topic 4: Access Layer Design | 15% | - Server and storage access design - Top-of-Rack and End-of-Row models - Unified fabric connectivity |
| Topic 5: Storage Networking Design | 12% | - Storage integration in unified fabric - FCoE, Fibre Channel, and iSCSI - SAN architecture and redundancy |
| Topic 6: Aggregation Layer Design | 20% | - FabricPath and OTV design - VLAN, VRF, and virtualization - Aggregation layer features |
| Topic 7: Security and Management Design | 14% | - Data center security framework - Monitoring, management, and automation - Access control and segmentation |
