Which of the following statements regarding scheduling on the Nokia 7750 SR is TRUE? (Choose two)

When using profile-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress.

The greater the difference between PIR and CIR rates in a queue, the less likely a CIR will be provided.

When an HQoS strategy using an egress port-scheduler has been deployed, Tier 1 receives its scheduling rates based on the amount of egress bandwidth available for each forwarding class.

Packets scheduled out of high-priority queues in the default scheduler will have a lower chance of packet loss at the expense of incurring a higher probability of delay.

When using priority-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress.

Which of the following statements about the token buckets of a policer is FALSE?

The CIR has no influence on the forwarding rate of the policer traffic.

The CIR influences whether a packet is considered high-profile or low-profile.

The policer discards all incoming packets when PIR bucket reaches the MBS level.

PIR bucket forwards packets that arrive with rates above PIR as out-of-profile.

Which of the following statements about Assured Forwarding (AF) Per Hop Behavior (PHB) groups is FALSE?

It defines a premium service that effectively creates a dedicated link between peers.

It defines four different AF traffic classes.

Every AF class in each differentiated services node is allocated a certain amount of forwarding resources.

Within each AF class, IP packets are marked with one of three possible drop precedence values.

Free Nokia 4A0-107 Exam Practice Questions & Explanations

Last updated on: Aug 31, 2026
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