[Dec 19, 2025] Pass Huawei Transmission H31-311_V2.5 Exam With 750 Questions [Q345-Q362]

QUESTION 345
The STAT indicator of the SDH board flashes red, lights up for 100ms, and turns off for 100ms. Which of the following means the state of the metric?

QUESTION 346
Coherent receiver technology uses a local oscillator laser with the same frequency as the received signal to perform coherent processing and recover () information from the received signal. (Multi-quality selection.)

QUESTION 347
The working mode of the port determines the flow control mode of the port. When the working mode is 100Mbit/s full-duplex, which of the following flow control modes can be used?

QUESTION 348
Which of the following layers of overhead belong to the electrical layer overhead of OTN? (Multiple choice)

QUESTION 349
APS lossless protection switching provides dual-transmission and selective reception functions for fiber differential protection services, as well as end-to-end delay alignment functions for working and protection paths, thereby improving service reliability.

QUESTION 350
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.

QUESTION 351
Bait-doped fiber amplifiers (EDFAs) are a key component of the new generation of optical communication systems. Which of the following is the feature of EDFA? Multiple Choice)

QUESTION 352
Both OTUk and ODUkP support obtaining LOF and LOM information by detecting FAS and MFRS overhead.

QUESTION 353
The value of the MFAS byte increases with the sequence number of the OTUk/ODUk base frame and includes a maximum of () base frames.

QUESTION 354
There are three types of multi-level connection monitoring modes (TCM) in OTN. Which of the following are correct? (Multiple choice)

QUESTION 355
Which of the following functions does the TNG2AST2 board not support?

QUESTION 356
VLAN division can prevent broadcast storms, improve network efficiency, and make the network more secure.

QUESTION 357
Which of the following media types has a transmission distance of no more than 1 km?

QUESTION 358
Which of the following statements are correct regarding the use of J0 bytes? (Multiple choice)

QUESTION 359
Which of the following are the components of a WDM system multiplexing N wavelengths?

QUESTION 360
When 2M PDH signal is mapped into VC12, the mapping method used is ().

QUESTION 361
Which of the following alarms will not generate corresponding alarms?

QUESTION 362
Which of the following alarm/event dump modes does U2000 support? (Multiple choice)