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.)

The Cisco IOS and IOS XE qos pre-classify command allows which kind of packet classification
on IP packets that are encapsulated with GRE and IPsec?

Which are typical class-based marking policies that are implemented on service provider IP NGN
PE routers?

Which item is not available to be used for QoS classification in Cisco IOS XR?