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Nokia 4A0-107 Practice Test - Questions Answers

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Question 1

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

The primary contributors to latency are distance, scheduling, and congestion.
The primary contributors to latency are distance, scheduling, and congestion.
The weighted round robin scheduling algorithm will result in more delay for high priority traffic than the regular round robin algorithm.
The weighted round robin scheduling algorithm will result in more delay for high priority traffic than the regular round robin algorithm.
The round robin scheduling algorithm will result in less jitter for low priority traffic than a strict priority scheduler.
The round robin scheduling algorithm will result in less jitter for low priority traffic than a strict priority scheduler.
Packet loss can be reduced by decreasing the amount of buffer space available to a queue.
Packet loss can be reduced by decreasing the amount of buffer space available to a queue.
Latency can be reduced by increasing the amount of buffer space available to a queue.
Latency can be reduced by increasing the amount of buffer space available to a queue.
Suggested answer: A, C
asked 23/09/2024
Gabriel Ty
33 questions

Question 2

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Click the exhibit button below. A network operator has configured the SAP-ingress policy below. Ping traffic is expected in queue 3. However, the network operator notices that all traffic is placed in queue 1. What is the most probable reason for this?

Nokia 4A0-107 image Question 2 80264 09232024011844000000

The default forwarding class for all traffic, including ICMP, is BE, which is placed in queue 1.
The default forwarding class for all traffic, including ICMP, is BE, which is placed in queue 1.
The SAP has been shut down.
The SAP has been shut down.
The IP-match criteria has been misconfigured for ICMP traffic.
The IP-match criteria has been misconfigured for ICMP traffic.
Queue 3 has no rate or CIR configured and thus cannot hold any packets.
Queue 3 has no rate or CIR configured and thus cannot hold any packets.
The SAP-ingress policy has not been applied to the SAP.
The SAP-ingress policy has not been applied to the SAP.
Suggested answer: E
asked 23/09/2024
Bogdan Karolic
39 questions

Question 3

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Which of the following are possible criteria for classifying packets at the SAP-ingress? (Choose three)

The EXP bits in the MPLS header.
The EXP bits in the MPLS header.
The packet's source and destination IP addresses.
The packet's source and destination IP addresses.
The service ID of the service to which the SAP belongs.
The service ID of the service to which the SAP belongs.
The dot1p bits in the frame header.
The dot1p bits in the frame header.
The packet's Ethertype.
The packet's Ethertype.
Suggested answer: B, D, E
asked 23/09/2024
Paola Aguirre
39 questions

Question 4

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With hierarchical scheduling, up to ___________ tiers are supported on the Nokia 7750 SR.

8
8
3
3
4
4
5
5
6
6
Suggested answer: B
asked 23/09/2024
Harry Meijer
44 questions

Question 5

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Based on queue usage, which of the following QoS-policies when combined will allow queue rates to be dynamically allocated? (Choose two)

The slope-policy
The slope-policy
The SAP-ingress policy
The SAP-ingress policy
The network-queue policy
The network-queue policy
The scheduler-policy
The scheduler-policy
The network-policy
The network-policy
The WRED-policy
The WRED-policy
The arbitrator-policy
The arbitrator-policy
Suggested answer: B, D
asked 23/09/2024
mohamed mamdouh
43 questions

Question 6

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Real-time rate limiting on the service ingress is a feature that performs_____________. Traffic above the defined PIR is ______________.

Policing, expedited
Policing, expedited
Metering, marked discard eligible
Metering, marked discard eligible
Marking, marked discard eligible
Marking, marked discard eligible
Policing, discarded
Policing, discarded
Shaping, discarded
Shaping, discarded
Suggested answer: D
asked 23/09/2024
AshokBabu Kumili
43 questions

Question 7

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Which of the following statements regarding scheduling on the Nokia 7750 SR is TRUE? (Choose two)

When using profile-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress.
When using profile-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress.
When an HQoS strategy using an egress port-scheduler has been deployed, Tier 1 receives its scheduling rates based on the amount of egress bandwidth available for each forwarding class.
When an HQoS strategy using an egress port-scheduler has been deployed, Tier 1 receives its scheduling rates based on the amount of egress bandwidth available for each forwarding class.
The greater the difference between PIR and CIR rates in a queue, the less likely a CIR will be provided.
The greater the difference between PIR and CIR rates in a queue, the less likely a CIR will be provided.
Packets scheduled out of high-priority queues in the default scheduler will have a lower chance of packet loss at the expense of incurring a higher probability of delay.
Packets scheduled out of high-priority queues in the default scheduler will have a lower chance of packet loss at the expense of incurring a higher probability of delay.
When using priority-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress.
When using priority-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress.
Suggested answer: A, C
asked 23/09/2024
Dilara Unsal
30 questions

Question 8

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Which of the following fields can be marked or remarked for frames belonging to a Layer 2 service?

DSCP
DSCP
PREC
PREC
Dot1p
Dot1p
ToS
ToS
Q-in-Q
Q-in-Q
Suggested answer: C
asked 23/09/2024
Alexey Chernikov
32 questions

Question 9

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Click the exhibit button below.

Nokia 4A0-107 image Question 9 80271 09232024011844000000

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)

The DSCP value will be set to af21.
The DSCP value will be set to af21.
The DSCP value will be set to af23.
The DSCP value will be set to af23.
The DSCP value will remain as ef.
The DSCP value will remain as ef.
The EXP value, in the MPLS headers, will be set to 4.
The EXP value, in the MPLS headers, will be set to 4.
The EXP value, in the MPLS headers, will be set to 3.
The EXP value, in the MPLS headers, will be set to 3.
Suggested answer: C, E
asked 23/09/2024
Gufran Dalwai
46 questions

Question 10

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Which of the following statements is considered best practice when changing a network policy that has been associated with an interface?

The policy should be placed in a 'shutdown' state before changes are made.
The policy should be placed in a 'shutdown' state before changes are made.
A new network policy should be created and applied to the interface, overwriting the previous policy.
A new network policy should be created and applied to the interface, overwriting the previous policy.
The policy must first be removed from the interface, then modified and re-applied to the interface.
The policy must first be removed from the interface, then modified and re-applied to the interface.
Before the policy can be changed, it must be deleted with the no network qos command.
Before the policy can be changed, it must be deleted with the no network qos command.
Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.
Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.
Suggested answer: B
asked 23/09/2024
Ronald Zegwaard
30 questions
Total 231 questions
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Related questions

Click the exhibit button below. Based on the configuration of the network policy (below), what will be the forwarding class associated with a MPLS encapsulated customer packet that arrives on a dotlQ encapsulated network port 1/1/4:1 on P1 with the following characteristics: EXP value = 6 DSCP value = cs1 Dot1pvalue = 3
On the Nokia 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?
Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)
Which of the following are major components of QoS functionality on the Nokia 7750 SR? (Choose three)
Which of the following statements regarding the default scheduler in the Nokia 7750 SR are TRUE? (Choose two)
Which of the following statements regarding scheduling are TRUE? (Choose two)
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?
Which of the following about scheduling is TRUE?
Which of the following CANNOT be used as external marking bits?
Which of the following self-generated traffic applications is considered ''protocol'' traffic, as opposed to ''management'' traffic?