SOM is an intelligent optical layer management solution, which is only used for single-wave optical power and OSNR detection of coherent 40G and 100G systems

• A.TRUE
• B.FALSE

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An ETH_LOS or LINK_ERR alarm occurs on a single Ethernet port of a multi-interface Ethernet board, and the service is interrupted.The possible reasons are: the working mode of the Ethernet port is not matched or the interface rate is inconsistent, the optical module hardware is faulty, and the possible reasons are?

• A.Optical fiber connection error
• B.MTU parameter setting is too small
• C.Ethernet port attribute setting error
• D.SDH line VC4 channel failure

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When the MR1 board is used as an OSN1800 single fiber bidirectional in the following scenarios, you can use the MR2 or MR4 board instead

• A.TRUE
• B.FALSE

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What should I pay attention to when swapping antennas? (multiple choices)

• A.If the microwave link adopts a 1+1 protection configuration and uses one antenna, turn off the power of the backup ODU before switching the antenna
• B.Turn on AM function
• C.During the commissioning period, there is no rain/snow/fog impact between the two sites
• D.ATPC function is off

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In the Linux system, configure an IP address of 129.9.1.100 for the network card Eth0, and the command used is ()

• A.ifconfig eth0 129.9.1.100
• B.ipconfig 129.9.1.100
• C.ifconfig 129.9.1.100
• D.ipconfig eth0 129.9.1.100

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