CKAD Exam Doubt

Hi Everyone,
I recently gave my CKAD examination.
The exam itself was easy and I was able to solve most of the questions in the allotted time.

The exam was conducted in the PSI browser which had navigation links on the top left section where the questions are shown and two additional links, one of which was to flag the question and second said ‘I am satisfied. Move to the next’.

My doubt is that, should I have clicked the ‘I am satisfied. Move to the next’ btn to save my work or is the forward navigation button and this button the same?

I am asking this because, only for a few questions I clicked the ‘satisfied’ btn, because I thought that both are essentially the same.

After I gave the exam, I was pretty confident about clearing the exam, but turned out that I didn’t make it.
I am suspecting that this was the issue, but can someone please clear this.

Thanks