The correct answer to the following question will be "Disaster Recovery as a Service (DRaaS)".
Explanation:
DRaaS seems to be a cloud services term used only to secure an infrastructure or data through human catastrophe or interruption of service at any destination by allowing a complete recovery throughout the cloud.
DR seems to be a security or management preparation field which seeks to protect an organisation from those in the consequences of major negative experiences.
This provides offsite backups which use storage resources to defend programs including assets from disaster-induced destruction.
