4.What are two types of AWS KMS and explain them in shot?
1. AWS managed key:
A key that AWS creates own and manages entirely for you. Here you don't have control manage it. Entirely free. Eg: protects AWS service data like EBS RDP
2. Customer managed key:
A key that you create own and manage entirely by you. Here you have the control to manage it in your account. Cost on monthly basis.