After a bank moved, the data on the mechanical hard disk could not be read. The engineer judged that the hard disk was faulty. What could be the cause of the fault? (Multiple Choice)

What technology is used to realize the conversion between Thick LUN and Thin LUN?

Which description is correct about FC protocol port? (Multiple Choice)

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

Comparing NAS storage system and file server, what are the advantages of NAS storage system? (Multiple Choice)