The clock has been seat at the server and countdown timer at the top of your screen will display the time remaining of you to complete the exam. When the clock runs out the exam ends by default. There no need to submit the test.
The question palette at the top side of screen shows one of following of each of the questions numbered.
you have not visited the question yet.
you have not answered the question.
you have answered the question.
you have not answered the question but have marked the question for further review.
If an answer is selected for a question that is marked for review, the answer will be considered in the final evaluation.