Free Huawei H31-341_V2.5 Practice Exam with Questions & Answers | Set: 2

In burst mode, an OTUk_DEG alarm is triggered when bit errors cause signal degradation, even if the error count threshold isn’t crossed.

In burst mode, the alarm also occurs if the number of bit errors within the detection window exceeds the configured threshold.

In the TCP/IP protocol stack, TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) reside at the Transport layer. This layer is responsible for providing end-to-end communication services for applications, including segmentation, flow control, and error checking. The Network layer handles routing (IP), Data Link layer manages physical addressing and error detection on links, and Application layer includes protocols like HTTP, FTP. HCIP-Transmission covers networking fundamentals and confirms that TCP/UDP protocols operate at the Transport layer, ensuring reliable and efficient data transport.

Data dumping on Network Management Systems (NMS) can occur in several types: (A) Periodic dumping, where data is saved at set intervals for monitoring and analysis; (C) Overflow dumping, triggered when buffer capacity is exceeded; and (D) Manual dumping, initiated by user commands. (B) Automatic dumping is not a standard term here or is often encompassed within periodic or overflow dumping mechanisms. HCIP-Transmission references these types as part of NMS data handling and fault diagnosis strategies, enabling efficient network performance management and troubleshooting.

The egress node checks received CV or FFD packets over any 3-second window when the ingress interval is 1 s (i.e., at three times the transmission interval).

Alarms prefixed with “SM” (Section Monitoring) - OTUk_SM_DEG and OTUk_SM_BDI - are specific to the OTUk section‐monitoring layer.

Optical layer overhead alarm detection is implemented via the Optical Layer Overhead Out Of Service (OOS) mechanism. Alarms like R_LOS (Loss of Signal) and MUT_LOS (Multiple Loss of Signal) belong to the optical layer and are reported based on OOS detection. This approach helps isolate physical layer faults and informs higher layers for protection switching or maintenance. HCIP-Transmission emphasizes that OOS-based alarm detection is crucial for rapid fault localization and efficient network operation in optical transmission systems.

In 1+1 optical line protection configurations, either the RI1/TO1 path or the RI2/TO2 path can be designated as the working channel.

Critical alarms indicate the most severe faults and must be addressed before major alarms to ensure system stability and availability.