How do i do this course online ? Or Can I just do the Speciality Certificate to get this knowledge
Security Engineering on AWS is a training course offered by AWS themselves, not A Cloud Guru. It’s a 3 day, in-person course. If you would like to find out more, click the link provided and find a class near you.
The Security Specialty course will help prepare you for said certification. I cannot say what the Security Engineering on AWS course will provide you.