Hi,
because you have been member of an A-kasse for at least 1 year when you graduate, then you will not be given a quarantine.
So you will receive dagpenge from your graduation date. Your last exam will be counted as the date of graduation.
I assume there will be no thesis you have to defend orally after your last exam.
You must change your status in the A-kasse from student to graduate, at latest 14 days after graduation/your last exam.
You can do it before that - it is possible to change to graduate status few weeks/1 month before graduation date.
In my answer I assume that you meet the new residence requirement that came into force from January 1, 2019. You can read more about the residence requirement here:
https://www.a-kasser.dk/requirement-of-7-years-of-stay-in-Denmark-or-eea/
Best regards,
Anders, www.a-kasser.dk