AWS Certified Developer Associate DVA-C02 Practice Question

Client-side encryption is the process where data is encrypted on the client's side (i.e., within the organization's boundary) before it is transferred to the server or service, such as S3. This approach means that the organization retains full control of the encryption keys and manages the encryption process. In this case, client-side encryption best addresses the security policy's requirement for the organization to manage its own encryption keys and for data to be encrypted before it leaves the premises. Server-side encryption involves encrypting data once it has been uploaded to S3, with key management handled by AWS or the customer through AWS Key Management Service (KMS). While it is a secure method, it does not meet the specific requirement of encrypting data before it leaves the organization's premises.