Preparing for the Nokia Quality of Service exam while juggling a full-time job is not easy, and most candidates simply do not have months to spare. Dumpkiller built its 4A0-107 practice questions for exactly that situation — 215 focused questions that make every study hour in 2026 count.
Nokia 4A0-107 Exam Overview:
| Certification Vendor: | Nokia |
|---|---|
| Exam Name: | Nokia Quality of Service (QoS) 4A0-107 |
| Exam Number: | 4A0-107 |
| Available Languages: | English |
| Exam Format: | Multiple choice |
| Related Certifications: | Nokia Service Routing and Switching Nokia Service Routing Certification (SRC) |
| Recommended Training: | Nokia Learning Services - QoS Training |
| Exam Registration: | Nokia Training and Certification Portal |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Computer-based exam (online or authorized test center depending on region) |
| Pre Condition: | Basic networking knowledge recommended (IP networking, routing fundamentals) |
| Official Syllabus URL: | https://www.nokia.com/networks/services/training-and-certification/ |
Nokia 4A0-107 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: QoS Implementation in IP Networks | - End-to-end QoS architecture - Service class design and mapping |
| Topic 2: Congestion Avoidance | - RED/WRED mechanisms |
| Topic 3: Quality of Service (QoS) Fundamentals | - Performance metrics (latency, jitter, loss) - Traffic types and service requirements - QoS concepts and objectives |
| Topic 4: Congestion Management | - Buffer management strategies - Queuing mechanisms (FIFO, priority queuing, WFQ) |
| Topic 5: Traffic Classification and Marking | - Packet classification methods - DiffServ and DSCP marking |
| Topic 6: Traffic Policing and Shaping | - Token bucket and leaky bucket mechanisms - Rate limiting and traffic conditioning |
Nokia Quality of Service: Common Questions From Candidates
What is the Nokia Quality of Service certification exam?
The Nokia Quality of Service exam (code: 4A0-107) is the official Nokia exam that leads to the Nokia Quality of Service certification. It is also connected with related credentials such as Nokia Service Routing Certification (SRC), Nokia Service Routing and Switching. Passing it proves to employers that your skills have been validated by Nokia itself, which is why the 4A0-107 credential keeps showing up in job postings.
Are there any prerequisites for the 4A0-107 exam?
According to Nokia, the following applies: Basic networking knowledge recommended (IP networking, routing fundamentals). Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://www.nokia.com/networks/services/training-and-certification/ before you register.
How do I register for the 4A0-107 exam?
You can book your Nokia Quality of Service exam through the official channels below:
Depending on availability in your region, the exam is delivered as Computer-based exam (online or authorized test center depending on region).
What official training does Nokia recommend for the 4A0-107 exam?
Nokia lists the following training options for Nokia Quality of Service candidates:
Official courses build a solid foundation, and pairing them with the 215 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.
Can I try the 4A0-107 practice questions before buying?
Yes. Dumpkiller offers a free 4A0-107 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Nokia Quality of Service 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 4A0-107 exam, and how is my order delivered?
If you take the corresponding 4A0-107 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 4A0-107 exam?
The official Nokia Quality of Service syllabus is organized into 6 main domains. The first three are Traffic Policing and Shaping, Congestion Management, and QoS Implementation in IP Networks. For the full domain-by-domain breakdown, see the complete Exam Topics outline above.
Nokia Quality of Service Sample Questions:
Question 1
Which priority-mode queue parameter may influence both the profile marking, and scheduling priority of a queue?
A. CIR
B. MBS
C. burst-limit
D. PIR
Question 2
Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?
A. Best Effort
B. Expedited
C. High-1
D. Assured
Question 3
Which of the following are categories of forwarding classes on the Nokia 7750 SR? (Choose two)
A. Non-conforming
B. High priority
C. In-profile
D. Real-time
E. Assured
Question 4
When deploying an Nokia MPLS network with QoS, how are the EXP bits set?
A. The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.
B. The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.
C. The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.
D. The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.
Question 5
Which of the following statements about CFHP policing hierarchy is FALSE?
A. A child policer can have a priority level from 0 to 10.
B. A tier 1 arbiter can be the parent of a policer.
C. The root arbiter can be the parent of a tier 2 arbiter.
D. Weight is used by a parent arbiter to allocate bandwidth among children of equal level
Solutions:
| Question 1 Answer: A | Question 2 Answer: C | Question 3 Answer: B,D | Question 4 Answer: A,B | Question 5 Answer: A |


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