Free 4A0-107 Exam Braindumps (page: 23)

Page 23 of 58

Which of the following statements describe the operation of WRED on the Nokia 7750 SR? (Choose three)

  1. WRED monitors the shared buffer space utilization over a period of time.
  2. WRED disables the TCP slow-start congestion control mechanism.
  3. WRED uses two configurable slopes for each buffer pool: a high slope and a low slope.
  4. WRED uses the shared buffer utilization, instead of the individual queue depth, to get a better picture of the average resource utilization of the shared buffer space.
  5. WRED polices the shared buffer pool and marks all packets above a certain rate as "discard eligible."

Answer(s): D



Click the exhibit button below. Given the scheduler-policy (below), which of the following can be done to guarantee that the best-effort traffic receives its configured CIR value?

  1. Change the CIR-level value for the best-effort queue to 8.
  2. Do not change anything; it is already guaranteed to receive its CIR
  3. Change the CIR-level value for the best-effort queue to 1.
  4. Change the CIR-weight value of the AF queue to 0.

Answer(s): A,D



Which of the following rate-limiting approaches are used on the Nokia 7750 SR? (Choose two)

  1. Shapeless policing at SAP-ingress only.
  2. Shapeless policing at SAP-ingress and egress.
  3. Biased round robin queuing at ingress only.
  4. Soft shaping at all network interfaces.
  5. Soft shaping at network ingress only.

Answer(s): D,E



If a packet is marked on a SAP-ingress, it will be remarked at the first network egress point (if remarking is enabled in the network egress policy).

  1. TRUE
  2. FALSE

Answer(s): B



Page 23 of 58



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