When delivering a Huawei flash storage project, an engineer introduced the SAN/NAS integrated architecture to the customer. Which of the following descriptions of the architecture is wrong?

When delivering a Huawei flash storage project, an engineer introduced the SAN/NAS integrated architecture to the customer. Which of the following descriptions of the architecture is wrong?
A . In the protocol layer, NFS/CIFS supports DTOE offloading, but iSCSl does not.
B . The software architecture can be divided from top to bottom into: protocol layer, data service layer, cache layer, file and block space management layer, and storage pool layer
C . The protocol layer is responsible for protocol parsing and permission management. SAN and NAS are two sets of semantic logic, so different service entry components are used to deliver and implement them respectively.
D . The space management layer adopts the AA high reliability mode, which can provide reliable data protection capabilities based on the customer’s actual business scenarios.

Answer: A