Preparing for the Nortel MPS 500 Ris. 3.0 Operations and Maintenance exam while juggling a full-time job is not easy, and most candidates simply do not have months to spare. Dumpkiller built its 920-128 practice questions for exactly that situation — 60 focused questions that make every study hour in 2026 count.
Nortel 920-128 Exam Overview:
| Certification Vendor: | Nortel |
|---|---|
| Exam Name: | MPS 500 Rls. 3.0 Operations and Maintenance |
| Exam Number: | 920-128 |
| Real Exam Qty: | 60-65 |
| Related Certifications: | Nortel MPS 500 Series Certification Track |
| Exam Format: | Multiple Choice |
| Exam Price: | $125 USD |
| Certificate Validity Period: | Retired / No longer renewable |
| Exam Duration: | 90 minutes |
| Passing Score: | 70% |
| Available Languages: | English |
| Exam Registration: | Prometric (Historical) |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | In-person at Prometric testing centers (exam retired, no longer offered) |
| Pre Condition: | Basic knowledge of VoIP, IP networking and Nortel telephony systems; no mandatory prerequisite exams |
Nortel 920-128 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Installation and Commissioning | 20% | - Initial Configuration and Setup - Site Preparation and Physical Installation - License Management and Activation |
| Topic 2: System Operation and Administration | 25% | - Database and Configuration Management - User and Service Provisioning - Daily Operations and Management Interfaces - Call Processing and Media Handling |
| Topic 3: MPS 500 Rls. 3.0 System Overview | 20% | - Hardware Architecture and Components - System Interfaces and Connectivity - Software Structure and Release Features |
| Topic 4: Maintenance and Troubleshooting | 25% | - Monitoring, Alarms and Log Analysis - Performance Management and Optimization - Fault Isolation and Resolution - Backup, Restore and Software Upgrades |
| Topic 5: Security and Network Integration | 10% | - Redundancy and High Availability - Security Configuration and Access Control - Integration with VoIP and IP Networks |
What Candidates Ask About the Nortel 920-128 Exam
Can you give me an overview of the 920-128 exam?
The Nortel MPS 500 Ris. 3.0 Operations and Maintenance exam (code: 920-128) is the official Nortel exam that leads to the Nortel Certified Support Specialist (NCSS) certification. It sits at the Specialist level of the Nortel certification track. It is also connected with related credentials such as Nortel MPS 500 Series Certification Track. Passing it proves to employers that your skills have been validated by Nortel itself, which is why the 920-128 credential keeps showing up in job postings.
How many questions are in the 920-128 exam, and how long does it take?
The Nortel MPS 500 Ris. 3.0 Operations and Maintenance exam gives you 90 minutes to work through 60-65. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.
What score do I need to pass the 920-128 exam, and how much does it cost?
The passing score for the Nortel MPS 500 Ris. 3.0 Operations and Maintenance exam is 70%, and the official registration fee is $125 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 70%.
Are there any prerequisites for the 920-128 exam?
According to Nortel, the following applies: Basic knowledge of VoIP, IP networking and Nortel telephony systems; no mandatory prerequisite exams. Certification policies do change from time to time, so confirm the latest requirements on the official exam page before you register.
How do I register for the 920-128 exam?
You can book your Nortel MPS 500 Ris. 3.0 Operations and Maintenance exam through the official channels below:
Depending on availability in your region, the exam is delivered as In-person at Prometric testing centers (exam retired, no longer offered).
What official training does Nortel recommend for the 920-128 exam?
Nortel lists the following training options for Nortel MPS 500 Ris. 3.0 Operations and Maintenance candidates:
Official courses build a solid foundation, and pairing them with the 60 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.
Can I try the 920-128 practice questions before buying?
Yes. Dumpkiller offers a free 920-128 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Nortel MPS 500 Ris. 3.0 Operations and Maintenance material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.
What happens if I do not pass the 920-128 exam, and how is my order delivered?
If you take the corresponding 920-128 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.
What topics are covered in the 920-128 exam?
The official Nortel MPS 500 Ris. 3.0 Operations and Maintenance syllabus is organized into 5 main domains. The first three are Security and Network Integration (10%), Maintenance and Troubleshooting (25%), and MPS 500 Rls. 3.0 System Overview (20%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.


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