This week's book giveaways are in the Jython/Python and Object-Oriented programming forums. We're giving away four copies each of Machine Learning for Business: Using Amazon SageMaker and Jupyter and Object Design Style Guide and have the authors on-line! See this thread and this one for details.
Yes, theoretically, the limit is 12 months from the download.
Unfortunately, the guys from Oracle University have not been able to retrieve the date in which I've downloaded assignment.
I had to use a pessimistic assumption and use the date when I received the mail confirming that I had the right to download the assignment.