Nokia Nokia Certifications 4A0-107 Questions & Answers

• Question 91:

  Which of the following statements about buffer admission control techniques is FALSE?

  A. A packet is accepted into a queue based on its priority and forwarding class.

  B. Buffer admission control limits the number of out-of-profile packets that enter the queue.

  C. Both high priority-only buffer space and WRED can be used in a queue.

  D. Priority is used when a packet enters a SAP-ingress queue.

  Correct Answer: C

• Question 92:

  Which of the following modules has 768 MB of buffer memory that dynamically allocates between its two MDAs?

  A. IOM3

  B. FP3 based IMM

  C. IOM1

  D. IOM2

  Correct Answer: A

• Question 93:

  Which ports on the same MDA share a buffer pool in a Nokia 7750 SR?

  A. Access ingress ports

  B. Access egress ports

  C. Network ingress ports

  D. Network egress ports

  Correct Answer: D

• Question 94:

  Which of the following statements about configuring queues to use shared or reserved buffer space is FALSE?

  A. When queues use shared buffer space, buffers are more efficiently utilized.

  B. Queues that use reserved buffer space will have memory available for their reserved portion.

  C. When a queue is not using its reserved portion, other queues can use it.

  D. Using reserved buffer space prevents a queue from being starved of buffer resources by other queues.

  Correct Answer: C

• Question 95:

  Which parameter can be configured in a network ingress QoS policy?

  A. The priority (low/high) to be assigned to the packets.

  B. The profile (in/out) to be assigned to the packets.

  C. The queues to be assigned to the forwarding classes.

  D. The markings to be marked on the packets.

  Correct Answer: B

• Question 96:

  Which of the following egress points does NOT support egress reclassification?

  A. Spoke-SDPs bound to an IES

  B. Spoke-SDPs bound to a VPRN interface

  C. SAPs

  D. Network interfaces

  Correct Answer: D

• Question 97:

  The network QoS policy shown below is applied properly to a Nokia 7750 SR acting as a transit Label Switch Router (LSR) for a given MPLS tunnel. A packet is received inside the MPLS tunnel with EXP=4, dot1p=4, and DSCP=AF. Which forwarding class is assigned to this packet?

  

  A. L2

  B. H1

  C. AF

  D. BE

  Correct Answer: B

• Question 98:

  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

  Correct Answer: D

• Question 99:

  Which of the following statements about network QoS policies is FALSE?

  A. Classification rules must specify both an FC and a profile for the packets.

  B. A network policy is applied at a physical port.

  C. Classification is performed with behavior-aggregate statements only.

  D. Match criteria can be chosen from dot1p, DSCP, and EXP fields in the packet.

  Correct Answer: C

• Question 100:

  The SAP-ingress policy shown below is applied properly to a Nokia 7750 SR. A traffic stream is received from an IP address of 192.168.2.200 with DSCP and dot1p set to EF and 4, respectively. Which forwarding class and priority level is used for this traffic stream?

  

  A. FC H1, high

  B. FCH1, low

  C. FCAF, high

  D. FCAF, low

  Correct Answer: A