When implementing MPLS DS-TE on Cisco IOS XR routers, all aggregate Cisco MPLS TE traffic is
mapped to which class type by default?

On the Cisco IOS XR, which MQC configuration is different than on the Cisco IOS and IOS XE?

On Cisco routers, how is hierarchical QoS implemented?

Refer to the Cisco IOS XR policy-map configuration exhibit.

What is wrong with the policy-map configuration?

When configuring class-based WRED on Cisco routers, which WRED parameter is not user
configurable on a Cisco IOS XR but is user configurable on a Cisco IOS and IOS XE?

Which of the following three statements are correct regarding IPv6 QoS? (Choose three.)

With unmanaged CE routers, at which point in the service provider network is the QoS trust
boundary, and what is required at the trust boundary?

On the Cisco IOS XR, when using the match protocol command within a class-map to classify traffic,
you noticed that the match protocol option on the Cisco IOS XR shows much fewer protocol options
than on the Cisco IOS or IOS XE, like there is no option such as the match protocol yahoo-messenger
command on the Cisco IOS XR. Why is this?

Within the service provider core network, which two QoS mechanisms are typically deployed on the
P routers? (Choose two.)

Which three steps are required to configure QPPB on Cisco IOS XR routers? (Choose three.)