Nokia Quality of Service - 4A0-107 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

On an Nokia IOM 3, how is buffer memory allocated per forwarding complex?

A. 512 MB ingress, 512 MB egress B. 768 MB, with a minimum of 256 MB ingress and egress, and an additional 256 MB dynamically allocated. C. 256 MB ingress, 256 MB egress D. 1 GB dynamically allocated between ingress and egress. E. 768 MB dynamically allocated between ingress and egress.

Discussion 0

Correct Answer: E Vote an answer

Question 2

Traffic assigned to forwarding classes is placed into queues, while the contents of the queues are serviced in a controlled manner using____________.

A. WRED B. schedulers C. shapers D. markers E. weighted fair queues (WFQ)

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Correct Answer: B Vote an answer

Question 3

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

A. FALSE B. TRUE

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Correct Answer: B Vote an answer

Question 4

Which of the following statements about port schedulers is TRUE?

A. A port scheduler can be implemented on an access ingress port. B. A port scheduler can be implemented on a network ingress port. C. A port scheduler can only be implemented on a network egress port when queue-groups are configured for that port. D. A port scheduler can be implemented without HQoS on an access egress port.

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Correct Answer: D Vote an answer

Question 5

Which of the following egress points does NOT support egress reclassification?

A. SAPs B. Spoke-SDPs bound to an IES C. Spoke-SDPs bound to a VPRN interface D. Network interfaces

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Correct Answer: D Vote an answer

Question 6

Which of the following are possible criteria for classifying packets at the network port ingress on the Nokia
7750 SR? (Choose three)

A. The dot1p bits in the frame header. B. The packet's DSCP bits. C. The ID of an SDP that is transporting the packet. D. The packet's source and destination IP addresses. E. The EXP bits in the MPLS header.

Discussion 0

Correct Answer: A,B,E Vote an answer

Question 7

In a Nokia 7750 SR, which of the following QoS policies CANNOT include packet classification criteria?

A. Network B. SAP-egress C. Network-queue D. SAP-ingress

Discussion 0

Correct Answer: B Vote an answer

Question 8

Packets arrive at the VPLS SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

A. af11 B. af23 C. af21 D. af31

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Correct Answer: A Vote an answer

Question 9

By default, how does a hybrid port on a Nokia 7750 SR share its allocated buffer space between access and network pools?

A. All buffer space is initially allocated to access pools, and some of it is reallocated to network pools if network interfaces are configured on it. B. All buffer space is initially allocated to network pools, and some of it is reallocated to access pools if service SAPs are configured on it. C. Buffer space is allocated 50% for access pools and 50% for network pools. D. Buffer space is allocated 25% for access pools and 75% for network pools.

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Correct Answer: C Vote an answer

Question 10

To implement Hierarchical-QoS (Multi-tiered scheduling), which of the following actions must be undertaken? (Choose three)

A. The queues in the SAP-ingress and SAP-egress policies do not require additional configuration attributes to make use of the hierarchical schedulers. B. A scheduler-policy must be configured. C. H-QoS capabilities must be enabled globally on the router D. The scheduler-policy must be referenced in the SAP-ingress and SAP-egress policies. E. The network queue policy must be configured to make use of the scheduler-policy. F. The scheduler-policy must be applied on the service SAP.

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Correct Answer: B,D,F Vote an answer

Question 11

Click the exhibit button below.

At router PE1, customer packets are arriving tagged with a dotlp value of 6 and marked with a DSCP value of EF.
Based on the configuration shown below for a VPLS service, what will be the DSCP and EXP marking for the packet egressing the network port on this PE router? (Choose two)

A. The DSCP value will remain as ef. B. The EXP value, in the MPLS headers, will be set to 4. C. The DSCP value will be set to af21. D. The EXP value, in the MPLS headers, will be set to 3. E. The DSCP value will be set to af23.

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Correct Answer: A,D Vote an answer

Question 12

What can be learned from the output of the command "show pools 1/2/2 network-egress" on the GigE port?

A. In-profile packets in the shared buffer space are being dropped. B. All incoming packets belonging to forwarding class "l2" are stored in the reserved buffer space. C. All incoming packets belonging to forwarding class "l1" are stored in the reserved buffer space. D. All incoming packets belonging to forwarding class "af" are stored in the reserved buffer space.

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Correct Answer: B Vote an answer