Nokia 4A0-107 Online Practice Questions and Exam Preparation

Nokia 4A0-107 Online Questions & Answers

• Question 61:

  Which action does the packet remarking process perform?

  A. It determines the packet's forwarding class based on classification criteria
  B. It modifies the current packet's forwarding class to indicate promotion or demotion
  C. It sets the TOS, DSCP, EXP, or Dot1p field based on classification criteria
  D. It modifies the current TOS, DSCP, EXP, or Dot1p marking to indicate promotion or demotion
  C. It sets the TOS, DSCP, EXP, or Dot1p field based on classification criteria

• Question 62:

  Click the exhibit button below. A network operator has configured a network-queue policy to map forwarding classes to queues, as shown in the exhibit below. Based on the default scheduling behavior of the Nokia 7750 SR, in which order will packets be serviced?

  

  A. All in-profile packets in round-robin, then all out-of-profile packets in biased round-robin.
  B. In-profile EF packets, then in-profile H2 packets, then in-profile AF packets, then out-of-profile EF packets, then out-of-profile H2 and AF packets, and then out-of-profile BE packets.
  C. In-profile EF, H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
  D. In-profile EF packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
  E. In-profile EF and H2 packets, then in-profile AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
  D. In-profile EF packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

• Question 63:

  Click the exhibit button below. Given the scheduler-policy (below), how much bandwidth can the best-effort traffic receive (PIR and CIR) when the ingress rate of each queue is 10Mbps?

  

  A. PIR = 4Mbps. CIR = 1Mbps
  B. PIR = 1Mbps, CIR = 1 Mbps
  C. PIR = 10Mbps, CIR = 1Mbps
  D. PIR = 5Mbps, CIR = 1.25Mbps
  E. PIR = 1.25Mbps, CIR = 1.25Mbps
  B. PIR = 1Mbps, CIR = 1 Mbps

• Question 64:

  Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 65:

  Which of the following statements about a queue's rate parameters is FALSE?

  A. If CIR = PIR, then all packets will be considered as in-profile.
  B. CIR can be set to 0.
  C. CIR can be larger than PIR.
  D. CIR can be set to `max'.
  A. If CIR = PIR, then all packets will be considered as in-profile.

• Question 66:

  An egress port scheduler applied to an Ethernet port has a configured bandwidth of 100 Mbps. All frames transmitted on the port are 80 bytes. What is the aggregate transmit bandwidth of all queues using the port scheduler?

  A. 100Mbps * 20/(80 + 20) = 20 Mbps
  B. 100Mbps * 80/(80 + 20) = 80 Mbps
  C. 100Mbps
  D. 100+ 100 * 20/(80 + 20) = 120 Mbps
  C. 100Mbps

• Question 67:

  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
  A. IOM3

• Question 68:

  Which of the following statements are TRUE regarding the building of a QoS-enabled network? (Choose two)

  A. It is important that all packets are classified in the same way at all SAP-ingress points.
  B. Once a packet is classified to a forwarding class, it cannot change across the network.
  C. Packet enters a node will be treated as per the local hop's configured policy.
  D. Native IP packets entering a network port will be marked at the first network egress by default
  E. Native IP packets entering a network port will not be marked at the first network egress by default.
  F. Native IP packets entering a network port will be marked at the first network egress, regardless of the re-marking configuration.
  C. Packet enters a node will be treated as per the local hop's configured policy.
  E. Native IP packets entering a network port will not be marked at the first network egress by default.

• Question 69:

  Which of the following statements regarding policing and shaping on the Nokia 7750 SR are TRUE? (Choose two)

  A. The larger the configured MBS value, the lower the amount of shaping performed.
  B. When policing is enabled on the SAP-ingress, all traffic is considered as in-profile.
  C. Setting the CIR to 1000 and the PIR to max will enable shapeless policing at 1 Mbps within the SAP-egress policy.
  D. Configuring MBS to equal CBS will disable shaping.
  E. Setting the CIR and PIR to equal values disables soft-policing.
  B. When policing is enabled on the SAP-ingress, all traffic is considered as in-profile.
  E. Setting the CIR and PIR to equal values disables soft-policing.

• Question 70:

  What is an SLA? (Choose two)

  A. An SLA is used to provide automated, real-time testing and alarming for throughput, latency, and jitter across a provider's network.
  B. An SLA is an agreement between a customer and a provider that dictates the treatment of customer traffic across the provider's network.
  C. An SLA allows customers to control all traffic within the service provider's network by prioritizing their traffic over others as desired.
  D. An SLA allows a customer to pre-mark traffic and ensure that traffic is treated as per the agreement within the provider's network.
  E. An SLA is a standard set of network QoS policies that a provider shares to all its customers, allowing them to better understand the treatment of traffic within the provider's network.
  B. An SLA is an agreement between a customer and a provider that dictates the treatment of customer traffic across the provider's network.
  D. An SLA allows a customer to pre-mark traffic and ensure that traffic is treated as per the agreement within the provider's network.