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Cisco 642-991 exam : Cisco Data Center Unified Fabric Solutions Design (DCUFD)

642-991 Exam Questions
  • Exam Code: 642-991
  • Exam Name: Cisco Data Center Unified Fabric Solutions Design (DCUFD)
  • Updated: Jul 22, 2026
  • Q & A: 75 Questions and Answers
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Cisco 642-991 Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Center Virtualization Design- Server and Application Connectivity
  • 1. Virtual machine networking requirements
    • 2. Cisco Nexus 1000V integration
      - Network Virtualization
      • 1. Virtual Port Channels (vPC)
        • 2. Overlay and virtualization technologies
          Topic 2: Unified Fabric Design- Cisco FabricPath
          • 1. FabricPath architecture and deployment
            • 2. Layer 2 multipathing concepts
              - Fabric Extender Technology
              • 1. Host and network connectivity designs
                • 2. Cisco FEX design models
                  - Fabric Automation
                  • 1. Unified fabric management concepts
                    • 2. Cisco Dynamic Fabric Automation (DFA)
                      Topic 3: Data Center Storage and Converged Networking- Storage Network Integration
                      • 1. Unified fabric storage considerations
                        • 2. SAN connectivity design
                          - Fibre Channel over Ethernet (FCoE)
                          • 1. Data Center Bridging technologies
                            • 2. FCoE architecture and design
                              Topic 4: Data Center Network Design- Data Center Architecture
                              • 1. Data center network design principles
                                • 2. Layer 2 and Layer 3 data center designs
                                  - Cisco Nexus Platform Design
                                  • 1. Cisco Nexus 7000 and Nexus 5000 design considerations
                                    • 2. Virtual Device Contexts (VDCs)
                                      Topic 5: Data Center Security and Services Design- Network Services
                                      • 1. Load balancing and service integration
                                        • 2. Firewall and service module design
                                          - Security Design
                                          • 1. Data center security mechanisms
                                            • 2. Access control and segmentation

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