Amazon online Assessment question

I was recently approached by a recruiter in linked for a Solution Architect Manager role at Amazon. They had me apply through the portal. After that while going through the portal I applied for few extra roles that were similar - Technical Program Manager and Delivery Manager.
Few hours later I got an Online assessment link but it did not say what job it was for.

Is there a way to find out what job it is for ? Also how should I prepare for it? The emails said it’s finds be 90 mins.