QUESTION 76
Which of the following are not part of the 400G originating modulation technology?

QUESTION 77
Which of the following description of the principle of automatic protection switching of the standard SSM protocol is correct? (Multiple Choice)

QUESTION 78
The main function of the transport layer in the Huawei ECC protocol stack is _____.

QUESTION 79
After the PWE3 service is successfully deployed, what is the deployment status of the PWE3 service displayed?

QUESTION 80
In the ROADM, which of the following layer of OTN paths do not need to be manually configured, it can be obtained directly by path search? (Multiple Choice)

QUESTION 81
Which of the following device types support the master-slave sub-architecture mode? (Multiple Choice)

QUESTION 82
When the working channel of the optical line protection fails, it cannot be automatically switched to the protection channel. What are the possible reasons? (Multiple choice)

QUESTION 83
The steps that must be performed when configuring the Ethernet private line service carried by the PW are as follows: (Multiple Choice)

QUESTION 84
Which of the following reasons does not cause optical power anomalies?

QUESTION 85
When configuring the Ethernet Layer 2 attribute, set the Default VLAN ID and VLAN Priority of the untagged frame when the TAG ID is set to Accese or Hybrid. The “VLAN priority” is set according to the QoS of the unified plan.

QUESTION 86
Which of the following statements about the Service Package is incorrect?

QUESTION 87
In the WDM system, what is the reason for the fiber attenuation and bit error rate? (Multiple Choice)

QUESTION 88
For emergency handling of business interruptions, fault location should be performed as soon as possible, and then the business should be resumed.

QUESTION 89
Which of the following is not a part of the ASON Control Protocol?

QUESTION 90
The NG WDM two-dimensional ROADM site can use the WSMD9 single board, and its signal flow is an optical signal that is connected to the main optical channel from the “IN” optical port. The RDU (ROADM Demix Unit) optical module broadcasts nine identical optical signals, which are output from the “DM1~DM8” and “ECPO” optical ports respectively. One of the signals is localized by the splitter board, and the other eight signals are dispatched to the other eight directions. Each wave of the main optical channel is connected from the “EXPI” optical port. The multiplexed or single-wave optical signal that needs to be inserted locally is input through the “AM1″~”AM8” optical port.

QUESTION 91
The following description of the operation of the device, the error is:

QUESTION 92
In WDM systems, when using less than () wavelength, it is ideal to use a dielectric thin film filter (TFF).

QUESTION 93
MPLS APS is a network protection mechanism. It implements service switching by using the MPLS OAM detection function.

QUESTION 94
A, C are the WDM OTM stations, and B is the relay station. When the transmission direction of the A to B stations is interrupted, the Wavelength side of the B-stack OTU relay board reports the R_LOS emergency alarm and runs the processing to the upstream A.
The station side OTU2_BDI secondary alarm. At the same time, the alarm continues to be transmitted to the downstream station of the B station. After the alarm is processed at the C site, the ODU2_PM_AIS minor alarm is reported on the WDM side of the C-site OTU, and the ODU2_PM_BDI secondary alarm is transmitted back to the upstream station A.

QUESTION 95
Which of the following is not a precaution after board replacement?

QUESTION 96
The optical and electronic shelves of the OSN 9800 are connected through the master-slave subrack cascading mode and connected through the GE 1/2 port on the CTu board.

QUESTION 97
Which of the following statements about the modulation technologies of the 40Gbit/s and 100Gbit/s coherent systems are correct?