4A0-107 Alcatel-Lucent Quality of Service

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Showing 1–3 of 15 questions

Question 1

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

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  • The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.

  • The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.

  • The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.

  • The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

Question 2

Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)

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  • In order to mark Layer 2 traffic, sgt-qos will set various ToS bits.

  • DSCP bits can be set per application, per routing instance.

  • The DSCP marking stays nc1 for all applications. Only the internal FC is manipulated across different applications.

  • In order to mark Layer 2 self-generated traffic, network interfaces must be set to dot1Q.

  • The internal forwarding class for self-generated traffic is set once and applied to the base router and all VPRN instances.

Question 3

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

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  • All out-of-profile traffic will be dropped before any in-profile is dropped.

  • The time average factor of 0 will discard all packets arriving in the shared buffer pool.

  • When the shared buffer utilization reaches 51%, in-profile packets might be dropped.

  • The highest probability with which an out-of-profile packet can be dropped is 20%.

  • When an in-profile packet arrives and the shared buffer utilization is at 69%, the packet will have approximately a 60% likelihood of being discarded.