Regarding the description of the hard disk domain in Huawei RAID 2.0+ technology, which of the following statement is incorrect?

A company previously purchased a batch of storage equipment, using SAS, and now it needs to be expanded due to insufficient capacity. Considering that the business does not require high performance, engineers should use NLS AS hard disks for capacity expansion.

In the following description of the Hyper clone feature, which options are correct? (Multiple Choice)

The data backed up by the differential backup is relative to the data added and modified after the last full backup.

The iSCSI protocol can be transmitted through the optical fiber network, and the transmission distance is almost unlimited. The iSCSI protocol is limited by the SCSI protocol and can run on the Ethernet.