Huawei
H31-341_V2.5 · Question #677
In the troubleshooting scenario, in order to detect and locate abnormal optical power faults in a timely manner, which of the following descriptions about the matters that need attention in daily…
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Question
In the troubleshooting scenario, in order to detect and locate abnormal optical power faults in a timely manner, which of the following descriptions about the matters that need attention in daily maintenance is correct? (Multiple choice)
Options
- ARecord the wavelength of each channel and the signal-to-noise ratio of each receiving point
- BRegularly back up the receiving and sending optical power of important boards
- CMaster the typical values of input and output optical power of different types of OTU boards and optical
- DRegularly back up the optical power of each point
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