Xiao Wang, an employee of a company, serves as the administrator of the company's storage system. When he uses two sets of OceanStor5500 V3 as a disaster recovery solution, he only needs one of the OceanStor5500 V3 configuration data to remote replication software.

Which of the following description about NAS is wrong? (Multiple choice)

When a company customer needs to complete data migration between devices, which features can be used to complete it? (Multiple choice)

The control frame is one of the core components in storage, mainly including control modules, BBU modules, power modules, management modules, interfaces, etc.

According to the disaster tolerance effect, the disaster tolerance level can be divided into ____. (Multiple choice)