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

Which statement is correct regarding the default MPLS TTL behavior?

Which three statements are correct regarding ping mpls command operations? (Choose three.)

What are the four fields inside the MPLS shim header? (Choose four.)

Which two of the following statements are correct regarding LSPs? (Choose two.)

Which four pieces of information are stored for each prefix in the LFIB? (Choose four.)

Which three network services can be implemented using MPLS within the service provider IP NGN
core? (Choose three.)

LDP session protection uses which one to maintain the LDP session between LDP neighbors?

You are tasked to enable LDP on many of the interfaces on the Cisco CRS-3 router, and because
there are many interfaces that need to have LDP enabled, you mistakenly did not enable LDP on all
the required interfaces. To prevent this issue from happening again in the future, what could you do
the next time you need to enable LDP on many interfaces?

Which two statements are correct in describing ISP environments that are running IP/MPLS in the
core network? (Choose two.)