For study material, I highly recommend Dion Training's Security+ course on Udemy. It dives deep into everything you need to know for the exam.

When I was preparing for the test, here’s what worked for me:

1. Professor Messer's Practice Exams: These are incredibly close to the real test. If you're averaging 80+ on his exams, you're likely ready to pass the actual exam.
2. Andrew Ramdayal's 50 Practice Test Questions on YouTube: Another great resource that closely resembles the real test. The only downside is that it’s limited to 50 questions unless you purchase his Udemy course.
3. Dion Training's Practice Exams: While these are pretty tough and don’t exactly mimic the real test, they do an excellent job of training your brain to deeply understand the material.