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Nokia 4A0-107 - Nokia Quality of Service

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Total 231 questions

What type of unwanted packet drops can the proper configuration of a queue’s burst-limit parameter prevent?

A.

Packet drops in the local queue resulting from traffic congestion.

B.

Packet drops on the downstream nodes resulting from traffic congestion.

C.

Packet drops in the local queue resulting from traffic bursts.

D.

Packet drops on the downstream nodes resulting from traffic bursts.

Click the exhibit button below. Given the slope-policy (below), which of the following statements are TRUE? (Choose two)

A.

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

B.

The discard probability slope of an in-profile traffic is steeper than that of an out-of-profile traffic.

C.

When the shared buffer utilization reaches 55%, both in-profile and out-of-profile packets may be dropped.

D.

The maximum probability with which an out-of-profile packet can be dropped is higher than that of an in-profile packet.

E.

When the shared buffer utilization is at 61%, only in-profile packets are currently in the shared buffer pool.

An IOM3 card of a Nokia7750 SR is enabled with the default scheduler and the policy shown in the image is applied to an access port on this card. In which order will packets be scheduled out of the queues?

A.

Queue 3 within-CIR packets, then queue 4 within-CIR packets, then queue 3 and queue 4 above-CIR packets in round-robin.

B.

Queue 4 within-CIR packets, then queue 3 within-CIR packets, then queue 3 and queue 4 above-CIR packets in round-robin.

C.

Queue 3 within-CIR packets, then queue 4 within-CIR packets, then queue 3 above-CIR packets, and finally queue 4 above-CIR packets.

D.

Queue 4 within-CIR packets, then queue 3 within-CIR packets, then queue 4 above-CIR packets, and finally queue 3 above-CIR packets.

A default network policy is applied to all router interfaces associated with network ports.

A.

TRUE

B.

FALSE

Without_______, a customer's high priority traffic can be dropped before its low priority traffic.

A.

packet filtering

B.

prioritization of traffic flows

C.

least cost routing

D.

OAM functionality

E.

separation between the data plane and the control plane

According to the SAP-egress policy configured and applied, which queue will forwarding class AF’s traffic use?

A.

Policer 2 on the queue-group Q-Group1 instance 1.

B.

Policer 1 on the queue-group Q-Group1 instance 1.

C.

The default policer 1.

D.

AF traffic is dropped.

Click the exhibit button below. Given the scheduler-policy (below), which of the following can be done to guarantee that the best-effort traffic receives its configured CIR value?

A.

Change the CIR-level value for the best-effort queue to 8.

B.

Do not change anything; it is already guaranteed to receive its CIR

C.

Change the CIR-level value for the best-effort queue to 1.

D.

Change the CIR-weight value of the AF queue to 0.

The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.

A.

8, 6, 3

B.

8, 8, 6

C.

16, 8, 4

D.

8, 6, 4

E.

24, 16, 8

Which of the following statements regarding the default scheduler in the Nokia 7750 SR are TRUE? (Choose two)

A.

There are a maximum of 8 levels of priority serviced using a round-robin algorithm.

B.

The default scheduler will spend an equal amount of time in each queue, as long as there is traffic present

C.

The H1 internal forwarding class will receive its CIR before AF traffic.

D.

Orphaned queues will be scheduled out of the BE queue.

E.

A queue servicing EF and AF traffic will require explicit configuration to set the queue to expedited.