Most Recent Nokia 4A0-107 Exam Questions & Answers

Prepare for the Nokia Quality of Service exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Nokia 4A0-107 exam and achieve success.

The questions for 4A0-107 were last updated on Dec 22, 2024.

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Question No. 1

In which of the following scenarios is the egress port scheduler useful? (Choose two)

AA customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are not being dropped on ingress.

BA customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are being dropped on ingress.

CA commercial builder has requested numerous dot1Q epipes, VPRNs, and VPLS services to a business park and is only paying up to a maximum 200Mbps.

DAn equipment manufacturer has requested a NULL epipe service that will transparently pass dot1Q between the new location and national headquarters.

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Correct Answer: A, C

Question No. 2

Why are the four QoS steps (classification, queuing, scheduling, and marking/remarking) executed twice for every packet entering a 7750 SR router?

AOnce before going through each of the redundant switching fabrics.

BTo protect against failure of either ingress or egress card.

COnce before going through the switching fabric, and once more before going onto the egress port.

DOnce to decide if the packet is in-profile or out-of-profile, and once more to process the packet according to its profile.

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Correct Answer: C

Question No. 3

If two queues complete for bandwidth in a hierarchical scheduler environment, which parameter is used by their parent scheduler to determine the priority with which each queue can use bandwidth above its committed rate?

Alevel

Bcir-level

Cweight

Dcir-weight

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Correct Answer: C

Question No. 4

Refer to the exhibit.

Traffic corresponding to a layer-3 VPN arrives at router PE1 marked with a dot1p value of 4. The SDP carrying the traffic uses an MPLS transport tunnel. Given the policies applied on the routers in the diagram, what is the EXP value of packets arriving at router PE2?

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Correct Answer: D

Question No. 5

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

AThe first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.

BThe EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.

CThe 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.

DThe EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

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Correct Answer: A, B

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