What is wrong with the following description of NAS? (Multiple choice)

Network Attached Storage (NAS) is fundamentally designed as a centralized file-sharing solution. Its primary purpose is to allow multiple, heterogeneous clients to access and share files concurrently over a standard IP network using protocols like CIFS/SMB and NFS. Furthermore, a single client operating system has no inherent limitation that prevents it from connecting to and mounting file systems from multiple different NAS devices simultaneously. Statements suggesting otherwise misrepresent the core architecture and utility of NAS. In contrast, clustering for failover and centralized management are common, advanced features of enterprise NAS systems.

A: High-availability clustering is a standard feature in enterprise-grade NAS to prevent service interruption in case of a node failure.

B: NAS appliances are managed through a dedicated, centralized console (often web-based) for configuring storage, users, and file systems.

1. Huawei HCIA-Storage V5.0 Training Material (2021).

Section: NAS Storage System Technology and Application: This section explicitly describes NAS as a "file sharing" technology

illustrating architectures where multiple clients connect to the same NAS device. This directly refutes option C. The material also explains that clients mount network shares

a process that can be repeated for shares on different NAS devices

refuting option D.

Section: Introduction to OceanStor Dorado All-Flash Storage Systems: When discussing NAS features

Huawei documentation details high-availability (HA) configurations

including active-active clusters

which validates the concept in option A. The management of these features is described as being handled through a unified management platform

DeviceManager

supporting option B.