Which two statements about the QoS-group keyword on Cisco IOS XR 3re true?

Refer to the exhibit:

A network engineer is implementing QoS services.

Which two statements about the QoS-group keyword on Cisco IOS XR 3re true? (Choose two )
A . The QoS group numbering corresponds to priority level
B . QoS group marking occurs on the ingress
C . It marks packets for end to end QoS pokey enforcement across the network
D . QoS group can be used in fabric QoS policy as a match criteria
E . It cannot be used with priority traffic class

View Answer

Answer: BD

Explanation:

https://www.cisco.com/c/en/us/td/docs/routers/ncs6000/software/ncs6k_r6-1/qos/configuration/guide/b-qos-cg-ncs6k-61x/b-qos-cg-ncs6k-61x_chapter_0110.html

Fabric QoS policy class maps are restricted to matching a subset of these classification options:

precedence

dscp

qos-group

discard-class

mpls experimental topmost