Which of the following RAID technologies need to calculate parity data when writing data? (Multiple Choice)

Huawei's all-flash storage system uses the SmartMatrix architecture to achieve full interconnection between the front and back ends, and the failure of any one controller does not affect the normal operation of the business.

Which of the following are the application scenarios of the SAN solution? (Multiple choice)

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

A company's applications and data have high security requirements. During the inspection, it was found that two NL-SAS hard disks were offline and the data was lost. In order to avoid this situation, it is necessary to complete the RAID configuration and require the utilization of the hard disk. To be greater than 60%, which of the following are eligible? (Multiple Choice)