The short answer is no.
Only vSphere 6.x classes qualify for VCP6-DCV, as per this page: VMware Certified Professional 6 – Data Center Virtualization (VCP6-DCV)
For VCP6.5-DCV, the training has to be either 6.5 or 6.7, as per this page: VMware Certified Professional 6.5 - Data Center Virtualization (VCP6.5-DCV)
And for the latest VCP-DCV 2019, the training has to be on 6.7, as per this page: VMware Certified Professional - Data Center Virtualization 2019 (VCP-DCV 2019)
Can I take it for the appropriate version, at all, then upgrade, or will I still need the course for v 6.6?
Sorry 6.5, 6.7
My guess is that v5 is redundant now!
Exams for VCP5-DCV retired some time ago, and those for VCP6-DCV (on vSphere 6.0) and VCP6.5-DCV all expire at the end of August, so at this stage I’d suggest focusing on vSphere 6.7 training and the VCP-DCV 2019.
You don’t have to take the Install Configure Manage class though, if you’d prefer to do something at a higher level, the training options are on the link I posted earlier.
Final question. Do you have to be a US resident to enrol on the Stanly educational courses.
Thanks for all. Much clearer for me now.