Nokia 4A0-107 Online Practice Questions and Exam Preparation

Nokia 4A0-107 Online Questions & Answers

• Question 1:

  Which of the following statements BEST describes where shaping mechanisms should be applied?

  A. On all ports on the Nokia 7750 SR.
  B. At the junction of high-speed to low-speed links or at places of traffic aggregation.
  C. At the junction of low-speed to high-speed links or at places of traffic aggregation.
  D. On low-speed WAN links.
  E. Nowhere. Shaping is only performed in hardware and serviced in a round-robin.
  B. At the junction of high-speed to low-speed links or at places of traffic aggregation.

• Question 2:

  While deciding how to share the available bandwidth among its children, when does a port scheduler consider the parameter "level" of a child?

  A. During the allocation of within-CIR bandwidth.
  B. During the allocation of above-CIR bandwidth.
  C. During the allocation of both within-CIR and above-CIR bandwidth.
  D. The port scheduler does not use the level of a child for making bandwidth allocation decisions
  B. During the allocation of above-CIR bandwidth.

• Question 3:

  What is the maximum number of SAP-ingress policies that can be applied on a SAP?

  A. 1
  B. 2
  C. 3
  D. 4
  E. 5
  F. 8
  A. 1

• Question 4:

  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
  D. Network egress ports

• Question 5:

  Which of the following self-generated traffic applications is considered "management" traffic, as opposed to "protocol" traffic?

  A. IS-IS
  B. RSVP
  C. ICMP
  D. BGP
  C. ICMP

• Question 6:

  A profile-mode queue is configured with the following attributes: MBS = 10 KB, CBS = 5 KB and High-Priority-Only = 30%. Assume there is no CBS overbooking, and the slope-policy is disabled. If the current queue depth is 8 KB, what will happen to an in-profile packet?

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

• Question 7:

  Which of the following are possible criteria for classifying packets at the network port ingress on the Nokia 7750 SR? (Choose three)

  A. The EXP bits in the MPLS header.
  B. The packet's source and destination IP addresses.
  C. The packet's DSCP bits.
  D. The dot1p bits in the frame header.
  E. The ID of an SDP that is transporting the packet.
  A. The EXP bits in the MPLS header.
  C. The packet's DSCP bits.
  D. The dot1p bits in the frame header.

• Question 8:

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

  A. Shapeless policing at SAP-ingress only.
  B. Shapeless policing at SAP-ingress and egress.
  C. Biased round robin queuing at ingress only.
  D. Soft shaping at all network interfaces.
  E. Soft shaping at network ingress only.
  D. Soft shaping at all network interfaces.
  E. Soft shaping at network ingress only.

• Question 9:

  Which of the following statements describe the primary objectives of the policing of traffic flows on the Nokia 7750 SR? (Choose two)

  A. Ensure that traffic flows conform to their traffic profile.
  B. Log violations of metered traffic flows exceeding the CIR value set on the entity across which the traffic is moving.
  C. Provide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows.
  D. Minimize packet loss and reduce end to end latency.
  E. Ensure that variable latencies do not cluster short bursts of originally conforming packets and render them nonconforming.
  A. Ensure that traffic flows conform to their traffic profile.
  C. Provide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows.

• Question 10:

  Click the exhibit button below. A partial SAP-ingress policy configuration is shown below. A UDP video stream is sent to a PC with IP address 192.168.1.100. Given the SAP-ingress policy, to which forwarding class is the traffic matched?

  

  A. AF
  B. EF
  C. H2
  D. H1
  E. BE
  B. EF