NO.56 In the OSN550, the CXL slot contains a function board that integrates a system control and communication (SCC) unit, a cross-connecting unit, and a clock unit Depending on the functionality and access features provided by the OSN550, there are several types of dashboards

NO.57 If a network port that supports autonegotiation is connected to a network port that does not support autonegotiation, you can interconnect in both half-duplex and full-duplex modes.

NO.58 Are the following statements regarding the definition of SDH correct?

NO.59 Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?

NO.60 The SP3D board supports 63 E1 services

NO.61 Which of the following statements about basic LCAS functionality are correct? (Multiple choice).

NO.62 When there is a Critical Error In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?

NO.63 WDM transmits optical signals multiplexed at multiple rates (wavelengths) through a single optical fiber, and the digital signals carried by these optical signals must have the same rate and data format

NO.64 Frame-Mapped GFP (GFPF> is a processing mode that targets data encoding blocks such as Fibre Channel and ESCON.

NO.65 When a bit error is detected in B2 bytes, which of the following alarms is reported by the peer?

NO.66 Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?

NO.67 A PAUSE frames use reserved multicast addresses and are not forwarded by bridges or switches. In this way, the PAUSE frame does not generate any additional information.

NO.68 Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).

NO.69 OChr means the use of electrical monitoring technology.

NO.70 After the U2000 sends configuration data to the network element, if the SCC single board authentication fails, the network element enters the installation state.

NO.71 During service configuration, which of the following service levels cannot be selected?

NO.72 Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).