Nortel 920-504 : Carrier Ethernet Operations

Exam Code: 920-504

Exam Name: Carrier Ethernet Operations

Updated: Aug 28, 2026

Q & A: 50 Questions and Answers

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Nortel 920-504 Exam Syllabus Topics:

SectionObjectives
Topic 1: Carrier Ethernet Fundamentals- Ethernet protocols and standards
  • 1. Ethernet OAM basics
    • 2. VLAN tagging and QinQ
      - Ethernet architecture in carrier networks
      • 1. Service delivery models
        • 2. Metro Ethernet concepts
          Topic 2: Carrier Ethernet Operations & Maintenance- Fault management
          • 1. Link monitoring and alarms
            • 2. Troubleshooting Ethernet services
              - Performance monitoring
              • 1. Latency and jitter analysis
                • 2. Traffic measurement tools
                  Topic 3: Carrier Ethernet Transport Technologies- Resiliency mechanisms
                  • 1. Redundancy protocols
                    • 2. Protection switching (ring/mesh)
                      - Metro transport infrastructure
                      • 1. Optical transport integration
                        • 2. MPLS in carrier Ethernet environments
                          Topic 4: Carrier Ethernet Services- Service attributes
                          • 1. QoS mechanisms
                            • 2. Bandwidth profiles
                              - Service types
                              • 1. E-LAN services
                                • 2. E-Tree services
                                  • 3. E-Line services

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