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Nokia 4A0-107 Practice Test - Questions Answers, Page 5

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Question 41

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A queue is configured with the following attributes: MBS = 10KB CBS = 5KB High-Priority-Only = 20% Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current q

Question 42

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A physical port has three associated buffer pools. Which of the following buffer pool combinations is associated to a physical port?

Question 43

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Which of the following are the minimum requirements needed to classify traffic marked with DSCP AF11, AF12, and AF13 into the AF forwarding class and provide fair treatment to the drop precedence se

Question 44

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Forwarding subclasses are only relevant to, and are therefore applied within the context of, a _____________policy.

Question 45

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To manage the shared buffer space at network ports, slope policies are applied on _________ for the ingress direction, and on ________ or _________ for the egress direction.

Question 46

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Click the exhibit button below. A service provider has applied the SAP-ingress policy configuration below on his customer's SAP. The service provider notices that all of the customer's traffic is be

Question 47

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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?

Question 48

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In the context of hierarchical scheduling, a scheduler is configured with a CIR weight of 0. Which of the following statements is TRUE?

Question 49

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Which of the following statements describe the primary objectives of the policing of traffic flows on the Nokia 7750 SR? (Choose two)

Question 50

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Which of the following entities can scheduler policies be applied to? (Choose two)

Question 41

A queue is configured with the following attributes:

MBS = 10KB

CBS = 5KB

High-Priority-Only = 20%

Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current queue depth is 3KB, what will happen to an out-of-profile packet arriving at an egress queue?

It will be queued in the reserved portion of the buffer pool and remain out-of-profile.

It will be queued in the reserved portion of the buffer pool if there are no in-profile packets already in the queue.

It will be queued in the reserved portion of the buffer pool and be in-profile.

It will be queued in the shared portion of the buffer pool but contend for shared buffer space with packets from other queues.

It will be queued in the shared portion of the buffer pool but may be dropped if the buffer utilization exceeds the start-average value of the low slope.

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Question 42

A physical port has three associated buffer pools. Which of the following buffer pool combinations is associated to a physical port?

Access ingress, access egress, network egress

Access ingress, network ingress, network egress

Port ingress, port egress, shared bi-directional

Port ingress, port egress, network egress

Port ingress, network ingress, network egress

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Which of the following are the minimum requirements needed to classify traffic marked with DSCP AF11, AF12, and AF13 into the AF forwarding class and provide fair treatment to the drop precedence settings? (Choose three)

Profile mode queues

Priority mode queues

1 queue

3 queues

3 forwarding classes

1 forwarding class, with 2 subclasses

1 forwarding class, with 3 subclasses

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Question 44

Forwarding subclasses are only relevant to, and are therefore applied within the context of, a _____________policy.

network

scheduling

slope

SAP-ingress

network-queue

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Question 45

To manage the shared buffer space at network ports, slope policies are applied on _________ for the ingress direction, and on ________ or _________ for the egress direction.

Interfaces, ports, SAPs

Ports, ports, MDAs

MDAs, MDAs, ports

Interfaces, interfaces. MDAs

MDAs, ports, interfaces

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Question 46

Click the exhibit button below. A service provider has applied the SAP-ingress policy configuration below on his customer's SAP. The service provider notices that all of the customer's traffic is being dropped at the SAP-ingress. Which of the following actions can resolve the problem, if applied on its own? (Choose three)

Set the CIR of queue 3 to a non-zero value corresponding to the customer's expected bandwidth requirements.

Set queue 3 to use priority mode.

Set the traffic classification of packets to in-profile.

Set the high-priority-only value to 0.

Map AF traffic to queue 1

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Question 47

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

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Question 48

In the context of hierarchical scheduling, a scheduler is configured with a CIR weight of 0. Which of the following statements is TRUE?

The scheduler will be allocated its 'within CIR' bandwidth before all other children at the same level have received their 'within CIR' bandwidth.

The scheduler will be allocated its 'within CIR' bandwidth after all other children at the same level have received their 'within CIR' bandwidth.

The scheduler will be allocated its 'within CIR' bandwidth after all other children at all levels have received their 'within CIR' bandwidth.

The scheduler will not be allocated its 'within CIR' bandwidth.

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Question 49

Which of the following statements describe the primary objectives of the policing of traffic flows on the Nokia 7750 SR? (Choose two)

Ensure that traffic flows conform to their traffic profile.

Log violations of metered traffic flows exceeding the CIR value set on the entity across which the traffic is moving.

Provide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows.

Minimize packet loss and reduce end to end latency.

Ensure that variable latencies do not cluster short bursts of originally conforming packets and render them nonconforming.

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