(In the intelligent O & M scenario of the CloudFabric Solution, which of the following...

In Huawei CloudFabric intelligent O & M (Operations and Maintenance), multiple southbound data collection protocols are supported to enable comprehensive monitoring, analysis, and fault diagnosis. Commonly supported protocols include Telemetry, SNMP, NetStream, and ERSPAN .

Telemetry is the primary modern mechanism, providing real-time streaming data with high accuracy and low latency. SNMP is used for traditional device monitoring and alarm collection. NetStream (Huawei’s implementation of NetFlow) is used for traffic analysis, while ERSPAN enables remote traffic mirroring for deep packet inspection and troubleshooting.

However, Qx is not a standard or supported southbound protocol in Huawei CloudFabric O & M architecture. It is not referenced in Huawei documentation as a mechanism for data collection or monitoring.

Therefore, option B is correct because it identifies the protocol that is not supported , while all other options are valid and commonly used in Huawei intelligent O & M solutions.