Nortel 920-180 : Ncts real time Networking

  • Exam Code: 920-180
  • Exam Name: Ncts real time Networking
  • Updated: Oct 01, 2026     Q & A: 154 Questions and Answers

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Nortel 920-180 Exam Syllabus Topics:

SectionObjectives
Voice over IP (VoIP) Technologies- Media transport
  • 1. Codec selection and bandwidth considerations
    • 2. RTP/RTCP operation
      - VoIP protocols
      • 1. H.323 architecture overview
        • 2. SIP signaling fundamentals
          Real-Time Networking Fundamentals- Packet-based voice and data convergence concepts
          • 1. Circuit vs packet switching overview
            • 2. Latency, jitter, and packet loss concepts
              - IP networking fundamentals
              • 1. IPv4 addressing and subnetting basics
                • 2. Routing and switching principles
                  Troubleshooting and Network Management- Performance monitoring
                  • 1. Delay, jitter, and packet loss analysis
                    • 2. Call quality metrics
                      - Fault diagnosis
                      • 1. Network configuration issues
                        • 2. VoIP call failure troubleshooting
                          Enterprise Voice Networking- Network design considerations
                          • 1. LAN/WAN voice integration
                            • 2. VLAN design for voice traffic
                              - Call control and signaling
                              • 1. Call setup and teardown processes
                                • 2. Gateways and gatekeepers
                                  Quality of Service (QoS)- QoS mechanisms
                                  • 1. Queuing and congestion management
                                    • 2. Traffic prioritization and classification
                                      - End-to-end QoS design
                                      • 1. DiffServ concepts
                                        • 2. Latency and jitter control techniques

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