Which of the following statements about OLT DOS attacks is wrong?

• A.The system will continue to detect Dos attacks by members on the blacklist
• B.If the OLT detects that the ARP rate threshold is exceeded, it will discard the ARP packets on the port, and other packets on the port will not be affected.
• C.If the port and ONT.Gemport continuously detect the number of Dos attacks equal to the number of continuous detections, the port, ONT, and Gem port are added to the blacklist
• D.For users launching Dos attacks, the OLT can only provide two protocol packet processing strategies: allow and deny

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When configuring the multicast service on the MA5600T/MA5680T, the multicast vlan program adopts the static configuration method. Which of the following options must be configured, otherwise the multicast program may not be watched?

• A.igmp preview
• B.igmp priority
• C.igmp profile
• D.igmp program

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Which of the following is not a QOS service model?

• A.Intserv
• B.Best Effort
• C.FIFO service
• D.Diffserv

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Huawei network management U2000 realizes the configuration of the voice service, and the voice configuration is issued through?

• A.Route template
• B.Value-added service template
• C.Business template
• D.SNMP template

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Which of the following statements about 10GEPON are correct? (Multiple choice)

• A.The frame protocols of 10G EPON and EPON are compatible.
• B.10G EPON technology follows the IEEE 802.3av standard, supports asymmetrical transmission rates of 10Gbit/s downstream and 2.5Gbit/s upstream, meeting high bandwidth
• C.10G EPON/EPON compatibility, that is, 10G EPONESONU can coexist with the same ODNT with 1G EPON ONU.
• D.The MPCP protocol of 10G EPON is the same as the IPCP protocol of EPON.

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