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Which of the following descriptions of WAN characteristics is wrong

中国大学MOOC答案 数据帝 2024-04-09 扫描二维码

A、WAN is a public data network
B、WAN shall provide telecommunication-level services for users
C、The focus of WAN research is broadband core switching technology
D、The core technology of WAN is line switching technology
喵查答案:The core technology of WAN is line switching technology

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