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

A. H-QoS capabilities must be enabled globally on the router

B. A scheduler-policy must be configured.

C. The queues in the SAP-ingress and SAP-egress policies do not require additional configuration attributes to make use of the hierarchical schedulers.

D. The network queue policy must be configured to make use of the scheduler-policy.

E. The scheduler-policy must be referenced in the SAP-ingress and SAP-egress policies.

F. The scheduler-policy must be applied on the service SAP.

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

A. The policy should be placed in a "shutdown" state before changes are made.

B. A new network policy should be created and applied to the interface, overwriting the previous policy.

C. The policy must first be removed from the interface, then modified and re-applied to the interface.

D. Before the policy can be changed, it must be deleted with the no network qos command.

E. Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.

Click the exhibit button below. Each router is interconnected by a single GigE link, as shown in the diagram below.

Note: The arrows show the direction of traffic flow.

Traffic from Customer A and Customer B that is classified to the same forwarding class is queued together at the ingress of Router B.

A. True

B. False

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.

B. It defines four different AF traffic classes.

C. Every AF class in each differentiated services node is allocated a certain amount of forwarding resources.

D. Within each AF class, IP packets are marked with one of three possible drop precedence values.

Which of the following statements about network QoS policies is FALSE?

A. Classification rules must specify both an FC and a profile for the packets.

B. A network policy is applied at a physical port.

C. Classification is performed with behavior-aggregate statements only.

D. Match criteria can be chosen from dot1p, DSCP, and EXP fields in the packet.

Which of the following statements about queue modes, and profile marking of packets when leaving a queue is FALSE?

A. Profile-mode and priority-mode queues can only be configured on SAP ingress.

B. For network egress, egress re-classification can change the profile marked at ingress.

C. For SAP egress, the profile marked at ingress may change based on the scheduling loop.

D. For network ingress, the network policy can classify the packet as either in-profile, or out-of-profile.

According to the SAP-ingress QoS policy shown, which packets have a higher priority to enter queue 2?

A. Packets marked with dscp = af33

B. Packets marked with dot1p = 4

C. All packets mapped to queue 2 have the same priority to enter this queue.

D. There are no packets mapped to queue 2.

Which of the following is NOT an adaptation rule supported on the Nokia 7750 SR for calculating the operational CIR/PIR of a queue?

A. Closest

B. Average

C. Min

D. Max

Which action should be taken to ensure that packets do not use the shared buffer space when put into a queue?

A. Set the queue's CBS to 0

B. Set the queue's MBS equal to the CBS

C. Set the queue's high-priority-only equal to the MBS

D. Set the queue's MBS to 0

E. Set the queue's high-priority-only to 0

Which of the following self-generated traffic applications is considered "protocol" traffic, as opposed to "management" traffic?

A. BGP

B. Telnet

C. ICMP

D. SNMP