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Nokia 4A0-107 Practice Test - Questions Answers, Page 11

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List of questions

Question 101

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Which of the following are categories of forwarding classes on the Nokia 7750 SR? (Choose two)

Question 102

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Click the exhibit button below. The service provider has both a VLL (epipe) service and a VPLS, as shown in the diagram below. At router PE B, traffic arriving from both services will have the sa

Question 103

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Which of the following statements describe the operation of WRED on the Nokia 7750 SR? (Choose three)

Question 104

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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?

Question 105

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Which of the following rate-limiting approaches are used on the Nokia 7750 SR? (Choose two)

Question 106

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If a packet is marked on a SAP-ingress, it will be remarked at the first network egress point (if remarking is enabled in the network egress policy).

Question 107

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Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)

Question 108

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

Question 109

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Click the exhibit button below. A network operator has configured a network-queue policy to map forwarding classes to queues, as shown in the exhibit below. Based on the default scheduling behavior

Question 110

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Which of the following statements regarding scheduling are TRUE? (Choose two)

Question 101

Which of the following are categories of forwarding classes on the Nokia 7750 SR? (Choose two)

Real-time

Assured

Non-conforming

High priority

In-profile

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Question 102

Click the exhibit button below. The service provider has both a VLL (epipe) service and a VPLS, as shown in the diagram below.

At router PE B, traffic arriving from both services will have the same network-queue policy applied.

TRUE

FALSE

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Question 103

Which of the following statements describe the operation of WRED on the Nokia 7750 SR? (Choose three)

WRED monitors the shared buffer space utilization over a period of time.

WRED disables the TCP slow-start congestion control mechanism.

WRED uses two configurable slopes for each buffer pool: a high slope and a low slope.

WRED uses the shared buffer utilization, instead of the individual queue depth, to get a better picture of the average resource utilization of the shared buffer space.

WRED polices the shared buffer pool and marks all packets above a certain rate as 'discard eligible.'

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Question 104

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?

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

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

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

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

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Question 105

Which of the following rate-limiting approaches are used on the Nokia 7750 SR? (Choose two)

Shapeless policing at SAP-ingress only.

Shapeless policing at SAP-ingress and egress.

Biased round robin queuing at ingress only.

Soft shaping at all network interfaces.

Soft shaping at network ingress only.

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Question 106

If a packet is marked on a SAP-ingress, it will be remarked at the first network egress point (if remarking is enabled in the network egress policy).

TRUE

FALSE

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Question 107

Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)

A device that provides no differentiation between customer traffic flows.

A device that classifies and marks customer traffic.

A device that uses MPLS EXP bits to differentiate between traffic flows.

A device that creates macroflows towards the core from multiple customer sites.

A device that passes macroflows while optionally changing QoS markings.

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Question 108

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

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Click the exhibit button below. A network operator has configured a network-queue policy to map forwarding classes to queues, as shown in the exhibit below. Based on the default scheduling behavior of the Nokia 7750 SR, in which order will packets be serviced?

All in-profile packets in round-robin, then all out-of-profile packets in biased round-robin.

In-profile EF packets, then in-profile H2 packets, then in-profile AF packets, then out-of-profile EF packets, then out-of-profile H2 and AF packets, and then out-of-profile BE packets.

In-profile EF, H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

In-profile EF packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

In-profile EF and H2 packets, then in-profile AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

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