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Nortel NNCDS -Ethernet Switching : 920-124 Exam

920-124 actual test
  • Exam Code: 920-124
  • Exam Name: NNCDS -Ethernet Switching Exam
  • Updated: Aug 06, 2026
  • Q & A: 69 Questions and Answers
  • PDF Demo
  • PC Test Engine
  • Online Test Engine
  • Total Price: $49.99  

About Nortel NNCDS -Ethernet Switching : 920-124 Exam

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Nortel 920-124 Exam Syllabus Topics:

SectionObjectives
Topic 1: Spanning Tree Protocol (STP)- STP variants
  • 1. Convergence behavior
    • 2. Rapid STP concepts
      - STP operation
      • 1. Loop prevention mechanisms
        • 2. Root bridge election
          Topic 2: Troubleshooting and Maintenance- Network diagnostics
          • 1. Common switching faults
            • 2. Log analysis and debugging
              - Switch troubleshooting
              • 1. Connectivity issues diagnosis
                • 2. Performance monitoring tools
                  Topic 3: Network Infrastructure- Redundancy mechanisms
                  • 1. High availability concepts
                    • 2. Link redundancy strategies
                      - Layered network design
                      • 1. Access, distribution, and core layers
                        • 2. Scalability considerations
                          Topic 4: VLANs and Trunking- VLAN configuration
                          • 1. VLAN creation and assignment
                            • 2. Inter-VLAN communication concepts
                              - Trunking protocols
                              • 1. 802.1Q tagging
                                • 2. Trunk link configuration principles
                                  Topic 5: LAN Switching Fundamentals- LAN segmentation
                                  • 1. Collision domains and broadcast domains
                                    • 2. VLAN concepts and usage
                                      - Switch operation principles
                                      • 1. MAC address learning and forwarding
                                        • 2. Switching tables and forwarding logic

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