Pick a task on the left
Each task opens with the steps to follow, the prerequisites that must already be in place, and a diagram of how the objects relate to each other, so you can see what a task actually builds rather than only what you type.
Work from task 1 to task 214 in order and you will have built a diagnostic method, then broken and diagnosed hosts, vCenter, clusters, virtual machines, vSAN, external storage, Supervisor and VKS, VCF Automation, the Operations stack itself, and NSX from the segment to the packet walk. Almost every task asks you to create the fault first, because a fault you built is one where you already know the answer. Tick tasks off as you go; progress is kept in this browser.
Keyboard: J and K, or the arrow keys, move between tasks. D marks the open task done.