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質問 1：
Which of the following statements describe the operation of WRED on the Nokia 7750 SR? (Choose three)
A. WRED disables the TCP slow-start congestion control mechanism.
B. WRED polices the shared buffer pool and marks all packets above a certain rate as "discard eligible."
C. 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.
D. WRED monitors the shared buffer space utilization over a period of time.
E. WRED uses two configurable slopes for each buffer pool: a high slope and a low slope.
正解：C
質問 2：
Which of the following statements about the token buckets of a policer is FALSE?
A. The policer discards all incoming packets when PIR bucket reaches the MBS level.
B. PIR bucket forwards packets that arrive with rates above PIR as out-of-profile.
C. The CIR influences whether a packet is considered high-profile or low-profile.
D. The CIR has no influence on the forwarding rate of the policer traffic.
正解：D
質問 3：
Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are FALSE?
(Choose three)
A. Ping traffic is place in queue 5.
B. Queues 5 and 6 will receive equal portions of any remaining available bandwidth to meet their above-CIR bandwidth requirements.
C. UDP traffic can be serviced at a maximum rate of 20 Mbps.
D. Queue 5 is using priority mode.
E. Queue 3 is scheduled before queue 5.
正解：B,C,E
質問 4：
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.
B. Marking/remarking the packets is for future classification.
C. Marking/remarking the packets will occur right after classification of the packet.
D. The process happens only before the packet goes onto the egress port.
正解：C
質問 5：
According to the SAP-egress policy configured and applied, which queue will AF traffic use?
A. Queue 3, because it is explicitly defined in the SAP-egress policy.
B. Queue 2, because it is explicitly configured in the queue-group template.
C. AF traffic is dropped because there is a mismatch between the mapping in the SAP-egress policy and in the queue-group template.
D. The default, queue 1, because there is a mismatch between the mapping in the SAP-egress policy and in the queue-group template.
正解：A
質問 6：
Which of the following statements is a characteristic of a CFHP arbiter?
A. An arbiter does not need to honor the configurations of its child policers.
B. An arbiter can adjust the bandwidth assigned to its child arbiters and child policers.
C. An arbiter rate-limits the collective output of several policers towards each egress FFPC.
D. An arbiter can adjust the CIR of its child policers.
正解：B
Which of the following statements describe the operation of WRED on the Nokia 7750 SR? (Choose three)
A. WRED disables the TCP slow-start congestion control mechanism.
B. WRED polices the shared buffer pool and marks all packets above a certain rate as "discard eligible."
C. 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.
D. WRED monitors the shared buffer space utilization over a period of time.
E. WRED uses two configurable slopes for each buffer pool: a high slope and a low slope.
正解：C
質問 2：
Which of the following statements about the token buckets of a policer is FALSE?
A. The policer discards all incoming packets when PIR bucket reaches the MBS level.
B. PIR bucket forwards packets that arrive with rates above PIR as out-of-profile.
C. The CIR influences whether a packet is considered high-profile or low-profile.
D. The CIR has no influence on the forwarding rate of the policer traffic.
正解：D
質問 3：
Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are FALSE?
(Choose three)
A. Ping traffic is place in queue 5.
B. Queues 5 and 6 will receive equal portions of any remaining available bandwidth to meet their above-CIR bandwidth requirements.
C. UDP traffic can be serviced at a maximum rate of 20 Mbps.
D. Queue 5 is using priority mode.
E. Queue 3 is scheduled before queue 5.
正解：B,C,E
質問 4：
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.
B. Marking/remarking the packets is for future classification.
C. Marking/remarking the packets will occur right after classification of the packet.
D. The process happens only before the packet goes onto the egress port.
正解：C
質問 5：
According to the SAP-egress policy configured and applied, which queue will AF traffic use?
A. Queue 3, because it is explicitly defined in the SAP-egress policy.
B. Queue 2, because it is explicitly configured in the queue-group template.
C. AF traffic is dropped because there is a mismatch between the mapping in the SAP-egress policy and in the queue-group template.
D. The default, queue 1, because there is a mismatch between the mapping in the SAP-egress policy and in the queue-group template.
正解：A
質問 6：
Which of the following statements is a characteristic of a CFHP arbiter?
A. An arbiter does not need to honor the configurations of its child policers.
B. An arbiter can adjust the bandwidth assigned to its child arbiters and child policers.
C. An arbiter rate-limits the collective output of several policers towards each egress FFPC.
D. An arbiter can adjust the CIR of its child policers.
正解：B
Mori -
Pass4Testさんの問題集を使って学生の私にも4A0-107に合格することができました。本当に助かりました。誠に有難うございます