Nortel 920-552 Exam Information and Actual Questions
- Exam Code/Number: 920-552
- Exam Name/Title: GSM BSS Operations and Maintenance
- Certification Provider: Nortel
- Corresponding Certification: NCSS
- Exam Questions: 122
- Updated On: Oct 09, 2026
920-552
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Nortel
920-552 Exam
GSM BSS Operations and Maintenance
Nortel 920-552 Exam Overview:
| Certification Vendor: | Nortel |
|---|---|
| Exam Name: | GSM BSS Operations and Maintenance |
| Exam Number: | 920-552 |
| Real Exam Qty: | 60-122 |
| Passing Score: | 70% |
| Exam Format: | Multiple Choice, Scenario-based |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Certificate Validity Period: | Discontinued since March 2008 |
| Exam Price: | USD 125-150 (historical) |
| Exam Registration: | Prometric (retired) |
| Sample Questions: | Nortel 920-552 Sample Questions |
| Exam Way: | Computer-Based Testing (CBT) at Prometric centers |
| Pre Condition: | No formal prerequisites; basic GSM knowledge recommended |
Nortel 920-552 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security & System Management | 10% | - Backup and restore procedures - Access control and security |
| Topic 2: Maintenance & Troubleshooting | 20% | - Hardware and software maintenance - Call drop and handover issues - Alarm handling and fault isolation |
| Topic 3: GSM BSS System Overview | 20% | - GSM network architecture - BSS components: BSC, BTS, TRX - Interface protocols (A-bis, A, Um) |
| Topic 4: Performance Monitoring & Optimization | 25% | - Radio resource management - Key performance indicators (KPIs) - Traffic analysis and load balancing |
| Topic 5: BSS Operation & Configuration | 25% | - BSC administration and parameters - Frequency planning and management - BTS configuration and commissioning |
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