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| 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 Certification (SRC) Nokia Service Routing and Switching |
| Recommended Training: | Nokia Learning Services - QoS Training |
| Exam Registration: | Nokia Training and Certification Portal |
| Sample Questions: | ![]() |
| 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/ |
| Section | Objectives |
|---|---|
| Topic 1: Traffic Policing and Shaping | - Token bucket and leaky bucket mechanisms - Rate limiting and traffic conditioning |
| Topic 2: QoS Implementation in IP Networks | - End-to-end QoS architecture - Service class design and mapping |
| Topic 3: Quality of Service (QoS) Fundamentals | - Performance metrics (latency, jitter, loss) - QoS concepts and objectives - Traffic types and service requirements |
| Topic 4: Congestion Avoidance | - RED/WRED mechanisms |
| Topic 5: Traffic Classification and Marking | - DiffServ and DSCP marking - Packet classification methods |
| Topic 6: Congestion Management | - Buffer management strategies - Queuing mechanisms (FIFO, priority queuing, WFQ) |
Nokia Quality of Service is an official Nokia exam, registered under exam code 4A0-107. Passing it grants the Nokia Quality of Service certification. It also relates to Nokia Service Routing Certification (SRC), Nokia Service Routing and Switching, giving it value beyond a single title. Qualifications remain the quickest standardized proof of professional skill, and this one carries the vendor's own authority behind it.
Basic networking knowledge recommended (IP networking, routing fundamentals)
Policies change, so confirm the current requirements before you register through the official exam page.
Nokia Quality of Service registration is available through the official channels listed below.
When scheduling, keep in mind the exam is delivered Computer-based exam (online or authorized test center depending on region).
Yes, Nokia recommends the following training for Nokia Quality of Service candidates.
Training supplies the knowledge; deliberate practice supplies the exam skill. The 215 practice questions in the ValidDumps 4A0-107 package handle the second half.
There is. ValidDumps offers a free PDF demo of the Nokia Quality of Service questions so you can assess the material before paying. Once you buy, updates are free for 365 days, and after your product expires you can extend the update service at a 50% discount.
ValidDumps backs your purchase with a 100% money-back guarantee under stated conditions. If you take the Nokia Quality of Service exam within 60 days of purchase and fail, you may claim a full refund, provided the exam corresponds to your product. Attempts taken within 3 days of purchase are ineligible, as are products downloaded but never used, free materials, and expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. Rather exchange than refund? You can receive two other exam products of equal value free and keep the update service on your original purchase.
Delivery is instant: files unlock for download at payment and are emailed to you within one minute. If nothing arrives within 2 hours, check spam and contact customer service. There is no limit on how many computers you may install the software on.
Nokia Quality of Service is structured into 6 official domains. The leading ones are Congestion Avoidance, Traffic Policing and Shaping, and QoS Implementation in IP Networks. The full outline is published above on this page; knowing exactly what the exam tests is the foundation every efficient study plan is built on.
Why are the four QoS steps (classification, queuing, scheduling, and marking/remarking) executed twice for every packet entering a 7750 SR router?
Correct Answer: C 🗳️
Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)
Correct Answer: C,D 🗳️
Packets arrive at the VPLS SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).
Correct Answer: A 🗳️
Which following statements about the four-step QoS process (classification, queuing, scheduling, and marking/remarking) executed for every packet entering a Nokia 7750 SR is TRUE?
Correct Answer: C 🗳️
On the Nokia 7750 SR, how many queues per FC are available for multipoint traffic within a VPLS on service ingress?
Correct Answer: D 🗳️
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