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Nokia 4A0-107 Practice Test - Questions Answers, Page 6

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It is necessary for Tier 1 schedulers to obtain bandwidth from a higher tier scheduler.

A.
TRUE
A.
TRUE
Answers
B.
FALSE
B.
FALSE
Answers
Suggested answer: B

In which of the following scenarios is the egress port scheduler useful? (Choose two)

A.
A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are not being dropped on ingress.
A.
A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are not being dropped on ingress.
Answers
B.
A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are being dropped on ingress.
B.
A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are being dropped on ingress.
Answers
C.
A commercial builder has requested numerous dot1Q epipes, VPRNs, and VPLS services to a business park and is only paying up to a maximum 200Mbps.
C.
A commercial builder has requested numerous dot1Q epipes, VPRNs, and VPLS services to a business park and is only paying up to a maximum 200Mbps.
Answers
D.
An equipment manufacturer has requested a NULL epipe service that will transparently pass dot1Q between the new location and national headquarters.
D.
An equipment manufacturer has requested a NULL epipe service that will transparently pass dot1Q between the new location and national headquarters.
Answers
Suggested answer: A, C

Which of the following statements about CIR of a queue is TRUE?

A.
It may exceed PIR of the queue.
A.
It may exceed PIR of the queue.
Answers
B.
It may be exceeded by the average servicing rate of the queue.
B.
It may be exceeded by the average servicing rate of the queue.
Answers
C.
It varies depending on the traffic characteristics.
C.
It varies depending on the traffic characteristics.
Answers
D.
It is the rate at which packets are forwarded out of the queue.
D.
It is the rate at which packets are forwarded out of the queue.
Answers
Suggested answer: D

Which of the following is NOT a characteristic of policing?

A.
It smooths out traffic bursts.
A.
It smooths out traffic bursts.
Answers
B.
It drops the packets when average peak rate is exceeded.
B.
It drops the packets when average peak rate is exceeded.
Answers
C.
It may additionally color the packets as they arrive.
C.
It may additionally color the packets as they arrive.
Answers
D.
It buffers the packets at its output before sending them out.
D.
It buffers the packets at its output before sending them out.
Answers
Suggested answer: B

Which following statements about the four-step QoS process (classification, queuing, scheduling, and marking/remarking) executed for every packet entering a Nokia 7750 SR is TRUE?

A.
The process happens only before the packet goes through the switching fabric.
A.
The process happens only before the packet goes through the switching fabric.
Answers
B.
The process happens only before the packet goes onto the egress port.
B.
The process happens only before the packet goes onto the egress port.
Answers
C.
Marking/remarking the packets is for future classification.
C.
Marking/remarking the packets is for future classification.
Answers
D.
Marking/remarking the packets will occur right after classification of the packet.
D.
Marking/remarking the packets will occur right after classification of the packet.
Answers
Suggested answer: D

Which of the following policies does NOT exist by default on a network port?

A.
A network policy for every network interface configured on the port.
A.
A network policy for every network interface configured on the port.
Answers
B.
A slope policy for the port on ingress.
B.
A slope policy for the port on ingress.
Answers
C.
A network queue policy for the corresponding MDA on ingress.
C.
A network queue policy for the corresponding MDA on ingress.
Answers
D.
A network queue policy for the port on egress.
D.
A network queue policy for the port on egress.
Answers
Suggested answer: A

Which of the following is a forwarding class type that is intended for network control traffic on a Nokia 7750 SR?

A.
High-1
A.
High-1
Answers
B.
Assured
B.
Assured
Answers
C.
Best Effort
C.
Best Effort
Answers
D.
Expedited
D.
Expedited
Answers
Suggested answer: A

Which of the following fields is in the MPLS header?

A.
802.1p bits
A.
802.1p bits
Answers
B.
Precedence
B.
Precedence
Answers
C.
DSCP
C.
DSCP
Answers
D.
EXP
D.
EXP
Answers
Suggested answer: D

Which of the following statements about Assured Forwarding (AF) Per Hop Behavior (PHB) groups is FALSE?

A.
It defines a premium service that effectively creates a dedicated link between peers.
A.
It defines a premium service that effectively creates a dedicated link between peers.
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B.
It defines four different AF traffic classes.
B.
It defines four different AF traffic classes.
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C.
Every AF class in each differentiated services node is allocated a certain amount of forwarding resources.
C.
Every AF class in each differentiated services node is allocated a certain amount of forwarding resources.
Answers
D.
Within each AF class, IP packets are marked with one of three possible drop precedence values.
D.
Within each AF class, IP packets are marked with one of three possible drop precedence values.
Answers
Suggested answer: A

Which of the following statements about behavior aggregate and multi-field classification in a Nokia 7750 SR is TRUE?

A.
Multi-field classification can use both MAC criteria and IP criteria in the same SAP-ingress QoS policy.
A.
Multi-field classification can use both MAC criteria and IP criteria in the same SAP-ingress QoS policy.
Answers
B.
Behavior aggregate classification can use both lsp-exp and dscp in the same SAP-ingress QoS policy.
B.
Behavior aggregate classification can use both lsp-exp and dscp in the same SAP-ingress QoS policy.
Answers
C.
Multi-field classification cannot use both IP criteria and IPv6 criteria in the same SAP-ingress QoS policy.
C.
Multi-field classification cannot use both IP criteria and IPv6 criteria in the same SAP-ingress QoS policy.
Answers
D.
Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy.
D.
Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy.
Answers
Suggested answer: D
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