I did the Tshoot exam two weeks ago and just used ping to get end to end for IPv4 and looked at the routing table for Ipv6 tickets.
I didnt try traceroute so I dont know if it works or not.
The topology hasnt changed in yonks (technical term)
Good luck with your exam
Thanks by the hint. Pinging approach is useful, but i consider this a "last method" because is time consuming. I try an approach using on DSW1 traceroute 126.96.36.199 source 10.2.1.1 and identify problem in router where trace stops or in the next router to the edge.
Anyway the Kenny's Walace "abort method" is very useful when you are out of ideas and solutions.