Regarding the ATM network, which one of the following descriptions is wrong?

• A.Support fixed-length exchange
• B.Working in the network layer of the OSI model
• C.Can guarantee the quality of service performance index (QOS) of various businesses
• D.Reduce the processing time of intermediate nodes and support high-speed transmission

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Is the following description correct? G.SHDSL broadband access technology is suitable for high-speed Internet access and video conferencing for users in hotels and Internet cafes, but it cannot provide dedicated line interconnection and dedicated line access.

• A.True
• B.False

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MA5600 supports ADSL2+, which of the following descriptions about ADSL2+ is incorrect?

• A.The spectrum bandwidth is 1.104MHz
• B.The maximum downlink speed is 24Mbit/s
• C.The farthest reachable distance is 6.5km
• D.Use high frequency bands, sub-channels (32-511) and sub-channels above 512.

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Is the following description correct? MA5600T/MA5680T SVLAN + CVLAN forwarding usually refers to forwarding packets through SVLAN + CVLAN on the service board, and forwarding packets through VLAN+MAC on the main control board; strict SVLAN + CVLAN forwarding means that both the service board and the main control board are forwarded through SVLAN + CVLAN forwards packets.

• A.False
• B.True

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When deploying IPTV services on MA5600T, in order to better ensure the quality of IPTV services .
Which of the following services will have the highest QOS priority configuration?

• A.BTV and VOD
• B.VOD
• C.Internet
• D.BTV, VOD and Internet

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