Nokia Nokia Certifications 4A0-107 Questions & Answers

• Question 181:

  Which of the following are the minimum requirements needed to classify traffic marked with DSCP AF11, AF12, and AF13 into the AF forwarding class and provide fair treatment to the drop precedence settings? (Choose three)

  A. Profile mode queues

  B. Priority mode queues

  C. 1 queue

  D. 3 queues

  E. 3 forwarding classes

  F. 1 forwarding class, with 2 subclasses

  G. 1 forwarding class, with 3 subclasses

  Correct Answer: ACF

• Question 182:

  A physical port has three associated buffer pools. Which of the following buffer pool combinations is associated to a physical port?

  A. Access ingress, access egress, network egress

  B. Access ingress, network ingress, network egress

  C. Port ingress, port egress, shared bi-directional

  D. Port ingress, port egress, network egress

  E. Port ingress, network ingress, network egress

  Correct Answer: A

• Question 183:

  A queue is configured with the following attributes:

  MBS = 10KB CBS = 5KB High-Priority-Only = 20%

  Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current queue depth is 3KB, what will happen to an out-of-profile packet arriving at an egress queue?

  A. It will be queued in the reserved portion of the buffer pool and remain out-of-profile.

  B. It will be queued in the reserved portion of the buffer pool if there are no in-profile packets already in the queue.

  C. It will be queued in the reserved portion of the buffer pool and be in-profile.

  D. It will be queued in the shared portion of the buffer pool but contend for shared buffer space with packets from other queues.

  E. It will be queued in the shared portion of the buffer pool but may be dropped if the buffer utilization exceeds the start-average value of the low slope.

  Correct Answer: A

• Question 184:

  Click the exhibit button below. Given the output of the #show pools 1/2/2 network-egress command on a GigE port, what can the service provider deduce? (Choose two)

  

  A. QoS is not configured on the router.

  B. Packets in forwarding classes "be" and "12" are being queued.

  C. Traffic belonging to forwarding class "ef" is not experiencing queuing delays.

  D. Traffic belonging to forwarding class "11 "will never make use of the shared buffer pool.

  E. Out-of-profile traffic in the shared buffer pool is being dropped.

  Correct Answer: BC

• Question 185:

  If traffic is destined to queue 5, which has a high-priority-only value of 0 in the network-queue policy, all out-of-profile packets will be dropped.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 186:

  On the Nokia 7750 SR, where can network-queue policies be applied? (Choose two)

  A. On the network egress port.

  B. On the SDP.

  C. On the access ingress port.

  D. On the egress MDA.

  E. On the SAP.

  F. On the ingress MDA.

  Correct Answer: AF

• Question 187:

  How many queues are available for use on service egress within a VPLS service?

  A. 1 multipoint and 8 unicast.

  B. 8 queues, regardless of traffic type.

  C. 8 unicast and 24 multipoint.

  D. 8 unicast and 8 multipoint.

  E. 16 queues, distributed as desired.

  Correct Answer: B

• Question 188:

  Which of the following statements BEST describes an MBS parameter?

  A. It specifies the maximum rate at which a queue can be serviced.

  B. It specifies the maximum depth of a queue beyond which packets will be dropped.

  C. It specifies the portion of a queue that is taken from the reserved buffer pool.

  D. It specifies the threshold beyond which only in-profile packets will be queued.

  E. It specifies the peak bandwidth that can be attained by the incoming traffic.

  Correct Answer: B

• Question 189:

  Which of the following should be performed if a service provider does not want packets to make use of the shared buffer space when queued?

  A. Set the CBS to 0.

  B. Set the MBS equal to the CBS.

  C. Set the high-priority-only equal to the MBS.

  D. Set the MBS to 0.

  E. Set the high-priority-only to 0.

  Correct Answer: B

• Question 190:

  Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are FALSE? (Choose three)

  

  A. Queue 5 is using priority mode.

  B. UDP traffic can be serviced at a maximum rate of 20 Mbps.

  C. Ping traffic is place in queue 5.

  D. Queues 5 and 6 will receive equal portions of any remaining available bandwidth to meet their above-CIR bandwidth requirements.

  E. Queue 3 is scheduled before queue 5.

  Correct Answer: BDE