Nortel 920-123 Exam Information and Actual Questions

  • Exam Code/Number: 920-123
  • Exam Name/Title: NCSS-BayStack/BPS Switching Exam
  • Certification Provider: Nortel
  • Corresponding Certification: Nortel Other Certification
  • Exam Questions: 45
  • Updated On: Oct 13, 2026

920-123
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Nortel
920-123 Exam
NCSS-BayStack/BPS Switching Exam

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Nortel 920-123 Exam Overview:

Certification Vendor:Nortel Networks
Exam Name:NCSS BayStack/BPS Switching Exam
Exam Number:920-123
Related Certifications:NCSS Routing
Nortel Network Switching Certification Track
Available Languages:English
Exam Format:Scenario-based Questions, Multiple Choice
Sample Questions:Nortel 920-123 Sample Questions
Exam Way:Computer-based exam (historically delivered via authorized testing centers)
Pre Condition:Basic knowledge of networking fundamentals and Ethernet LAN concepts is recommended.

Nortel 920-123 Exam Syllabus Topics:

SectionObjectives
Network Troubleshooting- Layer 2 diagnostics
  • 1. Broadcast storm detection
    • 2. Connectivity and port issues
      BayStack Switching Platforms- Device configuration and management
      • 1. Switch stacking and uplink configuration
        • 2. Basic CLI operations
          Spanning Tree Protocol (STP)- Loop prevention mechanisms
          • 1. Root bridge election process
            • 2. Port states and convergence
              Switching Fundamentals- Ethernet switching concepts
              • 1. MAC address learning and forwarding
                • 2. Collision domains vs broadcast domains
                  VLAN Configuration and Management- VLAN design and implementation
                  • 1. 802.1Q tagging basics
                    • 2. Access vs trunk ports


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