4A0-107 Nokia Quality of Service exact Exam Questions

Nokia Quality of Service

Last Update 14 hours ago Total Questions : 231

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Question # 31

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?

PIR = 4Mbps. CIR = 1Mbps

PIR = 1Mbps, CIR = 1 Mbps

PIR = 10Mbps, CIR = 1Mbps

PIR = 5Mbps, CIR = 1.25Mbps

PIR = 1.25Mbps, CIR = 1.25Mbps

Question # 32

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)

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.

Question # 33

The network QoS policy shown below is applied properly to a Nokia 7750 SR acting as a transit Label Switch Router (LSR) for a given MPLS tunnel. A packet is received inside the MPLS tunnel with EXP=4, dot1p=4, and DSCP=AF. Which forwarding class is assigned to this packet?

Question # 34

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

TRUE

FALSE

Question # 35

Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called " high " ? (Choose two)

It is a parent scheduler.

It is the top-level scheduler.

It can allocate up to 50 Mbps of bandwidth to scheduler " low " since the bandwidth is not used by another Tier 3 scheduler.

It is a child scheduler.

It can only have queues as children.

Question # 36

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?

It will be discarded because the high-priority-only threshold is exceeded.

It will be stored in the queue’s reserved buffer space and become out-of-profile.

It will be stored in the queue’s reserved buffer space and remain in-profile.

It will contend for shared buffer space with packets from other queues.

Question # 37

Which of the following parameters are used in a hierarchical scheduler-policy to specify the priority of the child scheduler/queue for allocating bandwidth beyond its committed rate? (Choose two)

CIR

CIR level

CIR weight

Rate

Level

Weight

Question # 38

On the Nokia 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?

Question # 39

Which of the following is NOT a factor when deciding if a packet can be accepted into a queue?

Profile/priority state of a packet

Forwarding class

Queue depth

HPO setting

Question # 40

In a Nokia 7750 SR, which of the following is a class type that is intended for non-real-time customer traffic that requires some committed bandwidth?

Gold

Assured

High Priority

Best Effort