
Absolutely!
The only time limitation is we allow one year from the purchase date to complete courses.
You could read some of it today, log into a different device tonight and keep studying.
You could answer ten questions today, come back five weeks from now, and continue the exam.
You can have your study material on one device and the exam on another.
As long as your course has not been completed or expired, you can come in and out of it as much as you please.