Which two types of QoS functionality will be provided by Network-Based Application Recognition？（）

A、A.NBAR provides the ability to configure MCQ； it is a mandatory MCQ component.

B、B.NBAR provides deep packet inspection and is used for advanced packet classification.

C、C.NBAR provides per-protocol packet and byte accounting functionality； it is used to track bandwidth utilization for all protocols described in the loaded PDLMs.

D、D.NBAR provides scheduling in an MQC policy map using an advanced algorithm.