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Free 4A0-107 Exam Braindumps
Nokia Quality of Service Questions 76–80 (page: 17)

Updated On: 9-Feb-2026
Page 17 of 48
PDF with 231 Questions

When allocating scheduling resources, which of the following statements BEST describes how the egress port scheduler allocates bandwidth?

  1. The egress port scheduler takes the ratio of requested bandwidth to total bandwidth request from all children. It allocates bandwidth fairly, using these percentages and not exceeding the egress interface speed.
  2. The egress port scheduler allocates bandwidth based on a WRR distribution method that takes into account the CIR and PIR requested at each level and the max speed, either default or configured, on egress.
  3. The egress port scheduler allocates bandwidth on a first come, first served distribution method that takes into account the total CIR and PIR requested at each level and the max PIR requested from a single level.
  4. The egress port scheduler will limit the bandwidth offered to the egress port based on the over- subscription factor, provisioned under the router interface, while using a WRR scheduler for the remaining bandwidth.
  5. The egress port scheduler will use the Russian Dolls Method to allocate bandwidth to each level of requested bandwidth. HPO-Only is automatically set to 100%, allowing only high priority traffic to be buffered during congestion.

Answer(s): B



Which of the following parameters are used in a hierarchical scheduler-policy to specify the priority of the child scheduler/queue for allocating bandwidth beyond its committed rate? (Choose two)

  1. CIR
  2. CIR level
  3. CIR weight
  4. Rate
  5. Level
  6. Weight

Answer(s): E,F



With hierarchical scheduling, up to ___________ tiers are supported on the Nokia 7750 SR.

  1. 8
  2. 3
  3. 4
  4. 5
  5. 6

Answer(s): B



Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)

  1. The slope-policy
  2. The SAP-ingress policy
  3. The network-queue policy
  4. The scheduler-policy
  5. The network-policy
  6. The WRED-policy
  7. The arbitrator-policy

Answer(s): B,D



Real-time rate limiting on the service ingress is a feature that performs_____________. Traffic above the defined PIR is ______________.

  1. Policing, expedited
  2. Metering, marked discard eligible
  3. Marking, marked discard eligible
  4. Policing, discarded
  5. Shaping, discarded

Answer(s): D



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