This post provides two example VCDX mock troubleshooting scenarios that you can use in your VCDX preparation. The PDFs merely provide a scenario that you and your mock panel can leverage and build upon. When the candidate asks questions, the mock panel will have to fabricate responses on the fly.
Here they are in PDF format:
There are additional scenarios with a post-event break-down in John Arrasjid’s VCDX Boot Camp publication and via Frank Büchsel.