As a network designer for a major multiservice network, your first assignment is to improve the IS-IS convergence to meet application requirements. Drag and drop the convergence tools or techniques to be used on your proposal from the left into the corresponding convergence phase on the right.

What are two benefits of using BFD for failure detection in the design of a network?
(Choose two.)

Refer to the exhibit. You are developing a migration plan to enable IPv6 in your IPv4 network.
Starting at R3 and assuming default IS-IS operations, what is likely to happen when you enable IPv6 routing on the link from R3 to R2?

You are the lead network designer for an enterprise company called ABC, and you are leading design discussions regarding IPv6 implementation into their existing network.
A question is raised regarding older Layer 2 switches that exist in the network, and if any changes are required to these Layer 2 switches for successful IPv6 implementation.
Which two responses should you give? (Choose two.)

Which two statements about QoS marking are true? (Choose two.)