Free Huawei H31-311 Exam Dumps Questions & Answers

Which of the following are the steps for multiplexing low-speed services into high-speed SDH services?
(Multiple Choice)

• A.Mapping
• B.Alignment
• C.Overhead insertion
• D.Multiplexing

NE A and NE B are adjacent NEs. If B3 and lower-order bit errors occur in the A->B direction and B1, B2, B3, and lower-order bit errors occur in the B->A direction, which of the following performance events are reported by NE A? (Multiple Choice)

• A.MSBBE
• B.RSFEBBE
• C.MSFEBBE
• D.HPBBE
• E.HPFEBBE
• F.RSBBE

Which of the following alarms does not trigger the AU-AIS alarm?

• A.R-LOS
• B.B2-EXC
• C.AU-LOP
• D.MS-AIS

Optical supervisory channels are intended for the supervisory of WDM optical transmission systems. In ITU-T recommendations, 1510 nm wavelengths at a ( ) rate are preferentially used.

• A.2Mbit/s
• B.64 kbit/s
• C.192 kbit/s
• D.576 kbit/s

When setting the LCAS mode, follow the following principles:
1. If devices at the two ends are both Huawei devices, set them to the "Standard Mode".
2. If a Huawei device is interconnected with a third-party device, set the interconnected devices to the same mode according to the mode supported by the third-party device.

• A.FALSE
• B.TRUE