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Nortel 920-521 Exam Syllabus Topics:

SectionObjectives
Topic 1: Quality of Service and Performance- QoS design
  • 1. Traffic prioritization mechanisms
    • 2. Bandwidth management strategies
      - Performance optimization
      • 1. Latency and jitter control
        • 2. Network tuning techniques
          Topic 2: Call Processing and Services- Call routing and control
          • 1. Routing policies and call flows
            • 2. Dial plan design and implementation
              - Feature services
              • 1. Advanced telephony features
                • 2. Unified communications services
                  Topic 3: Operations, Troubleshooting and Maintenance- System monitoring
                  • 1. Performance monitoring tools
                    • 2. Fault detection and alerting
                      - Troubleshooting methodologies
                      • 1. Call failure analysis
                        • 2. Network issue diagnosis
                          Topic 4: Design and Engineering Principles- Network integration design
                          • 1. Service provider interoperability
                            • 2. Enterprise network integration
                              - Solution design considerations
                              • 1. High availability and redundancy design
                                • 2. Capacity planning and scalability
                                  Topic 5: ACE Architecture Overview- System architecture and components
                                  • 1. Core network elements and roles
                                    • 2. Service delivery architecture
                                      - Protocol and signaling foundations
                                      • 1. Interworking with legacy telephony systems
                                        • 2. VoIP and signaling principles

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