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

[answerhappygod]

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.