Free Nokia Quality of Service 4A0-107 Exam Questions
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Question 1
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?
Correct Answer:D. In-profile EF packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
Question 2
A queue-group template can contain both queues and policers when applied under which conditions?
Correct Answer:D. When applied at the port level for network egress.
Question 3
Which of the following statements about configuring queues to use shared or reserved buffer space is FALSE?
Correct Answer:C. When a queue is not using its reserved portion, other queues can use it.
Question 4
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.
Correct Answer:B. FALSE
Question 5
Which of the following is NOT an advantage of deploying queue-groups on a network port?
Correct Answer:B. It enables CFHP and hierarchy scheduling (egress) for each network interface.
Question 6
On the Nokia 7750 SR, where can network-queue policies be applied? (Choose two)
Correct Answer:A. On the network egress port.; F. On the ingress MDA.
Question 7
Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called "high"? (Choose two)
Correct Answer:A. It is a parent scheduler.; D. It is a child scheduler.
Question 8
Which of the following statements regarding egress FC and profile over-ride are TRUE? (Choose two)
Correct Answer:B. This feature is available on egress SAPs within any service.; E. If a Behavior Aggregate (BA) and Multi-field (MF) match occurs, the BA classification can override the forwarding class while the MF classification can override the profile.
Question 9
Which of the following statements about behavior aggregate and multi-field classification in a Nokia 7750 SR is TRUE?
Correct Answer:D. Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy.
Question 10
Refer to the exhibit.
In the image shown above, the SAP-ingress policy is applied properly to a Nokia 7750 SR. A packet is received from an IP address of 192.168.2.2 with DSCP set to AF. Which forwarding class and priority level is assigned to this packet?
Correct Answer:C. BE, low
Question 11
Click the exhibit button below. Given the slope-policy (below), which of the following statements are TRUE? (Choose two)
Correct Answer:C. When the shared buffer utilization reaches 55%, both in-profile and out-of-profile packets may be dropped.; D. The maximum probability with which an out-of-profile packet can be dropped is higher than that of an in-profile packet.
Question 12
Which of the following statements regarding the egress port scheduler is TRUE?
Correct Answer:C. Multiple HQoS policies can be children of a single port scheduler.
Question 13
Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.
Correct Answer:B. FALSE
Question 14
Which of the following policies does NOT exist by default on a network port?
Correct Answer:A. A network policy for every network interface configured on the port.
Question 15
A hierarchical scheduler policy with the shown parameters is configured at a service ingress. If the offered rate of each queue is 10Mbps, what is the operational PIR and CIR for queue 3?