Nokia 4A0-107 Exam Questions Answers

Nokia 4A0-107 Study Questions for Exam 2026

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Nokia Quality of Service Exam 4A0-107 Questions and Answers

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Questions & Answers PDF

• Question 1

  

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

  • 1 multipoint and 8 unicast.
  • 8 queues, regardless of traffic type.
  • 8 unicast and 24 multipoint.
  • 8 unicast and 8 multipoint.
  • 16 queues, distributed as desired.

  Reveal Answer Answer: B Next Question

• Question 2

  

  Which of the following statements regarding DSCP bits are TRUE? (Choose three)

  • The three most significant (first) bits define 8 forwarding classes.
  • The three least significant (last) bits of the DSCP specify the drop probability.
  • The full 8 bits of the TOS field are used for DSCP.
  • To convert DSCP to IP precedence, the three most significant (first) bits are matched.
  • DSCP provides for eight drop probabilities.

  Reveal Answer Answer: A,B,D Next Question

• Question 3

  

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

  • Router interfaces
  • Ingress MDA
  • Ingress Ethernet network ports
  • Egress Ethernet network ports
  • Service SAPs

  Reveal Answer Answer: A,C,E Next Question

• Question 4

  

  Forwarding subclasses are only relevant to, and are therefore applied within the context of, a policy.

  • network
  • scheduling
  • slope
  • SAP-ingress
  • network-queue

  Reveal Answer Answer: D Next Question

• Question 5

  

  How does an IOM3 improve the queue usage over an IOM2 in an Nokia 7750 SR? (Choose two)

  • The IOM3 adds more memory to both forwarding complexes which increases the total number of queues available.
  • The IOM3 only contains a single forwarding complex which reduces the number of queues used.
  • The IOM3 allows multiple forwarding classes to be assigned to a single queue.
  • The IOM3 allows queues to be dynamically allocated between ingress and egress.
  • The IOM3 has a larger CPU capable of tracking active hardware queue utilization and adjusting memory allocation accordingly.

  Reveal Answer Answer: B,D Next Question

• Question 6

  

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

  • Access ingress, access egress, network egress
  • Access ingress, network ingress, network egress
  • Port ingress, port egress, shared bi-directional
  • Port ingress, port egress, network egress
  • Port ingress, network ingress, network egress

  Reveal Answer Answer: A Next Question

• Question 7

  

  Which of the following components are NOT configured in a hierarchical scheduler policy?

  • Queue parameters with which the queue will compete for bandwidth.
  • The level of hierarchy with which a group of schedulers is associated.
  • Bandwidth controls that limit each child scheduler or child queues associated with the scheduler.
  • The maximum bandwidth that the parent scheduler can offer its child queues or schedulers.

  Reveal Answer Answer: C Next Question

• Question 8

  

  Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)

  • A device that provides no differentiation between customer traffic flows.
  • A device that classifies and marks customer traffic.
  • A device that uses MPLS EXP bits to differentiate between traffic flows.
  • A device that creates macroflows towards the core from multiple customer sites.
  • A device that passes macroflows while optionally changing QoS markings.

  Reveal Answer Answer: B,D Next Question

• Question 9

  

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

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

  Reveal Answer Answer: B,E Next Question

• Question 10

  

  Real-time rate limiting on the service ingress is a feature that performs . Traffic above the defined PIR is .

  • Policing, expedited
  • Metering, marked discard eligible
  • Marking, marked discard eligible
  • Policing, discarded
  • Shaping, discarded

  Reveal Answer Answer: D Next Question

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Total Questions: 0

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