Get real 920-124 exam questions for better preparation
Real Nortel 920-124 practice exam questions for easy pass!
Updated: Aug 08, 2026
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Nortel 920-124 Exam Overview:
| Certification Vendor: | Nortel Networks |
| Exam Name: | NNCDS - Ethernet Switching Exam |
| Exam Number: | 920-124 |
| Exam Format: | Multiple Choice, Scenario-based Questions |
| Certificate Validity Period: | Retired / No longer offered |
| Available Languages: | English |
| Related Certifications: | Nortel Networks Certified Support Specialist (NNCSS) Nortel Networks Certified Design Specialist (NNCDS) |
| Sample Questions: | Nortel 920-124 Sample Questions |
| Exam Way: | Computer-based exam (historical delivery via authorized testing centers; currently retired) |
| Pre Condition: | Recommended foundational knowledge in networking fundamentals (TCP/IP, Ethernet basics). Prior Nortel networking training or equivalent experience is typically assumed. |
Nortel 920-124 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Switching Technologies | - Layer 2 switching principles - Switch forwarding tables (CAM/MAC tables) - Store-and-forward vs cut-through switching |
| Topic 2: VLANs and Trunking | - 802.1Q tagging and trunk links - VLAN configuration and segmentation - Inter-VLAN communication concepts |
| Topic 3: Spanning Tree Protocol (STP) | - STP operation and loop prevention - Root bridge election - Port states and convergence |
| Topic 4: Ethernet Fundamentals | - Collision domains vs broadcast domains - Ethernet frame structure and operation - MAC addressing and switching behavior |
| Topic 5: Switch Management and Troubleshooting | - Troubleshooting Layer 2 connectivity issues - Basic switch configuration and CLI operations - Monitoring switching performance |
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