According to the Terms and Conditions, the exact questions of the certification cannot be revealed.
However you need to aware of all the tasks to be performed mentioned in the below link
You can also write a practice exam by following the steps mentioned in the link
Please "Accept" the answer if this helps
I guess it covers Spark as well. In Step 3, you can filter for practiceexam and choose the AMI. If there anything specific to hdpcd spark you can select it, else you can choose the generic hdpcd AMI