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Nokia 4A0-107 Practice Test - Questions Answers, Page 16

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Question 151

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Which of the following statements about the default scheduler in the Nokia 7750 SR is FALSE?

Question 152

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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

Question 153

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A hierarchical scheduler policy with the shown parameters is configured at a service ingress. If the offered rate of each queue is 10Mbps, what is the operational PIR and CIR for queue 3?

Question 154

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Which of the following statements describes a queue's weight parameter that is used in the hierarchical scheduling?

Question 155

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Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

Question 156

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

Question 157

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Which of the following statements about the bandwidth allocation criteria used by an egress port scheduler is TRUE?

Question 158

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While deciding how to share the available bandwidth among its children, when does a port scheduler consider the parameter ''level'' of a child?

Question 159

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An egress port scheduler applied to an Ethernet port has a configured bandwidth of 100 Mbps. All frames transmitted on the port are 80 bytes. What is the aggregate transmit bandwidth of all queues u

Question 160

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A frame belonging to a Layer 2 service is encapsulated in an MPLS tunnel at a network-egress port. Which of the following fields in the frame can be marked or remarked at the network egress port?

Question 151

Which of the following statements about the default scheduler in the Nokia 7750 SR is FALSE?

The default scheduler spends an equal amount of time servicing each queue that has traffic to be sent out.

Queue-type can be configured as best-effort, expedite, or auto-expedite.

A queue will be serviced as expedited if its type is configured as expedited, regardless of the forwarding classes mapped to it.

A queue configured as auto-expedited will be an expedited queue as long as no Best Effort FC is mapped to it.

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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?

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

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

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

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

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Question 153

A hierarchical scheduler policy with the shown parameters is configured at a service ingress. If the offered rate of each queue is 10Mbps, what is the operational PIR and CIR for queue 3?

PIR = 5 Mbps, CIR = 0 Mbps

PIR= 4 Mbps, CIR = 1 Mbps

PIR= 6 Mbps, CIR = 4 Mbps

PIR= 6 Mbps, CIR = 1 Mbps

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Question 154

Which of the following statements describes a queue's weight parameter that is used in the hierarchical scheduling?

The weight specifies the priority of the queue during scheduling up to its CIR.

The weight specifies the priority of the queue during scheduling above-CIR, up to its PIR.

The weight is used to determine how this queue and other queues or schedulers at the same CIR-level share available CIR bandwidth at that level.

The weight is used to determine how this queue and other queues or schedulers at the same level share available above CIR bandwidth at that level.

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Question 155

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

Several Tier 1, Tier 2, and Tier 3 schedulers can be defined within a policy.

A queue's parent scheduler must be a Tier-3 scheduler.

The parent must have a higher level in the hierarchy.

If no parent is configured, the queue/scheduler is considered orphaned.

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Question 156

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.

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Question 157

Which of the following statements about the bandwidth allocation criteria used by an egress port scheduler is TRUE?

The available bandwidth of the port is divided in a strict priority over its children.

Expedited queues must be serviced before best-effort queues.

Orphaned queues are serviced on the 8th scheduling priority.

The configured CIR dictates the maximum port bandwidth that can be allocated during the within-CIR pass for that level.

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Question 158

While deciding how to share the available bandwidth among its children, when does a port scheduler consider the parameter ''level'' of a child?

During the allocation of within-CIR bandwidth.

During the allocation of above-CIR bandwidth.

During the allocation of both within-CIR and above-CIR bandwidth.

The port scheduler does not use the level of a child for making bandwidth allocation decisions

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Question 159

An egress port scheduler applied to an Ethernet port has a configured bandwidth of 100 Mbps. All frames transmitted on the port are 80 bytes. What is the aggregate transmit bandwidth of all queues using the port scheduler?

100Mbps * 20/(80 + 20) = 20 Mbps

100Mbps * 80/(80 + 20) = 80 Mbps

100Mbps

100+ 100 * 20/(80 + 20) = 120 Mbps

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Question 160

A frame belonging to a Layer 2 service is encapsulated in an MPLS tunnel at a network-egress port. Which of the following fields in the frame can be marked or remarked at the network egress port?

ToS

DSCP

PREC

EXP

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Total 231 questions