What is Backup and Storage? Ans: Backup storage refers to a storage device, medium or facility that is used for storing copies and instances of backup data. Backup storage enables the maintenance, management, retrieval and restoration of backup data for any individual, application, computer, server or any computing device. How many types of Storage? Ans: i) Physically HDD: DVD: PEN DRIVE: SCSI ii) Logically i Cloud Google Drive AWS One Drive Advantages of Cloud Storage. Ans: i) Accessibility ii) Flexibility iii) Energy Efficiency iv) Data Protection