Nokia 4A0-107 Online Practice Questions and Exam Preparation

Nokia 4A0-107 Online Questions & Answers

• Question 51:

  According to the SAP-ingress QoS policy shown, which packets have a higher priority to enter queue 2?

  

  A. Packets marked with dscp = af33
  B. Packets marked with dot1p = 4
  C. All packets mapped to queue 2 have the same priority to enter this queue.
  D. There are no packets mapped to queue 2.
  A. Packets marked with dscp = af33

• Question 52:

  Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?

  A. High-1
  B. Assured
  C. Best Effort
  D. Expedited
  A. High-1

• Question 53:

  A profile-mode queue is configured with MBS = 100 KB, CBS = 50 KB and High-Priority-Only = 40%. Assume there is no CBS overbooking, and the slope-policy is disabled. If the current queue depth is 70 KB, what will happen to an out-ofprofile packet when it is transmitted to the queue?

  A. It will be stored in the reserved buffer space and remain out-of-profile.
  B. It will be stored in the reserved buffer space and become in-profile.
  C. It will contend for shared buffer space with packets from other queues.
  D. It will be discarded because the high-priority-only threshold has been reached.
  A. It will be stored in the reserved buffer space and remain out-of-profile.

• Question 54:

  Which of the following are entities of the Nokia 7750 SR on which you can NOT apply a network-queue policy? (Choose three)

  A. Router interfaces
  B. Ingress MDA
  C. Ingress Ethernet network ports
  D. Egress Ethernet network ports
  E. Service SAPs
  A. Router interfaces
  C. Ingress Ethernet network ports
  E. Service SAPs

• Question 55:

  Which of the following criteria is an IP multi-field classification option?

  A. prec
  B. lsp-exp
  C. src-ip
  D. do1p
  C. src-ip

• Question 56:

  Click the exhibit button below. The service provider has both a VLL (epipe) service and a VPLS, as shown in the diagram below.

  

  At router PE B, traffic arriving from both services will have the same network-queue policy applied.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 57:

  Which of the following statements about a SAP-ingress policy is FALSE?

  A. It maps customer traffic to forwarding classes on ingress.
  B. It can use customer QoS markings to do the mapping.
  C. The default SAP-ingress policy classifies all traffic into FC "be" with low priority.
  D. It serves the classification, queuing, and marking functions of QoS but does not serve scheduling
  D. It serves the classification, queuing, and marking functions of QoS but does not serve scheduling

• Question 58:

  Click the exhibit button below.

  

  All interfaces are using their default trust states and MPLS is used as the transport tunnel. The SAP-ingress, SAP-egress, and network QoS policies have been configured as shown below. Assume that the default network-queue policy is used on each router.

  At router PE 1, customer traffic is arriving marked with DSCP BE and tagged with a dot1p value of 3.

  Based on the configuration shown below for the VPRN service, what will be the DSCP and dot1p marking for the packet egressing at router PE 2? (Choose two)

  A. The DSCP value will be set to af21.
  B. The DSCP value will be set to be.
  C. TheDSCPvaluewillbesettoaf23.
  D. The DSCP value will be set to af 12.
  E. Thedot1pvaluewillbesetto5.
  F. Thedot1pvaluewillbesetto2.
  G. The dot1p value will be set to 3.
  D. The DSCP value will be set to af 12.
  E. Thedot1pvaluewillbesetto5.

• Question 59:

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

• Question 60:

  Which of the following about scheduling is TRUE?

  A. HQoS schedulers cannot be children of an egress port-scheduler.
  B. HQoS schedulers provide a dynamic method of allocating scheduling resources to queues.
  C. HQoS scheduler policies can be applied to an MDA to schedule network ingress traffic.
  D. A scheduler policy applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service.
  D. A scheduler policy applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service.