The notebooks are usually available within the Academy portal, and you can download them there. The instructors dedicate the first 15 minutes to environment setup and troubleshooting. If you encounter issues, notify the instructor in the meeting chat as soon as the session begins and they can immediately provide a direct link. Also, the workspace provisioned for the training most likely has the notebooks pre-loaded already

For some reason on the "Data Engineering+SQL Analytics and BI" I don't see the "Content" tab to be able to download "Vocareum" where it has all the instructions. This was my problem last training, that this didn't download and wasn't able to follow the training. I would like to avoid this problem again. FYI - I did notify the instructor at that time, and didn't get response. 

You can raise a support request here