Account is a credential for using the object storage service (compatible with Amazon S3 interface), and its management function does not include:

When purchasing storage devices, the available capacity is less than the actual hard disk capacity. Which of the following possible reasons are correct? (Multiple choice)

Which of the following statements about client deduplication and media deduplication are true? (Multiple Choice)

What types are supported by SmartQuota of the OceanStor 5300 V3? (Multiple Choice)

A multinational company has a huge business, with customer business data scattered in multiple locations, and the distance between locations is greater than 1000 km. The company hopes to centrally manage the backup data of each site, so that users can analyze and mine all data without affecting normal business, and any business site suffers a disaster, the company can take over the business and perform data recovery.
In this case, which disaster recovery backup solution the enterprise should choose?