The three major operators' new scenarios on the access side are mainly based on GPON technology, and EPON technology is mainly aimed at stock expansion as capacity expansion/upgrade.

• A.TRUE
• B.FALSE

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Which of the following management systems can OptiXtrans DC908 support?

• A.NCE-T Lite
• B.CLI
• C.eSight
• D.WebGUI
• E.NCE

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What can be connected to the EA5800 device in the following ONU device? (Multiple Choice)

• A.EA5821
• B.EG8040P
• C.MA5694s
• D.EG8240H

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Under the ADM configuration in the shared protection ring of the two-fiber bidirectional multiplex section at the STM-16 level, the service protection conditions are:

• A.Two circuit boards, one main and one standby
• B.The two circuit boards have nothing to do with each other
• C.The two circuit boards are mutually backup
• D.Half the capacity in one plate is used to protect half the capacity in the other plate

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About the XGS PON description, which is wrong?

• A.Simplify the physical layer message management mechanism, which is lower than GPON in terms of safety and energy saving
• B.The maximum downlink rate is 9.95Gbit/s, and the maximum upward rate is 9.95Gbit/s.
• C.In order to adapt to 10G rates to improve the frame structure, improve the flexibility of DBA allocation
• D.The maximum spanning ratio is 1: 256; a single PON port can access more onu, suitable for high density scenarios

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