I recently took CompTia Security+ SY0-401 exam (September 2016) and passed on my first attempt. You definitely have to prepare for the test. I finished within 60min, that gave me some time to review my questions. I changed about 5 normal and 1 interactive questions. As a non native English speaker I've received additional 30 min of time, but it wasn't needed.
Here is How I propose to study for the exam.
Jump start with safari video...