Circuit-switching technology is used in

资格题库2022-08-02  38

问题 Circuit-switching technology is used in Public Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and Code Division Multiple Access(CDMA). It is a ( ) information transfer mode.A.Connection orientedB.connectionlessC.High bandwidth utilizationD.Poor-real-time

选项

答案 A

解析 电路交换技术用于PSTN、GSM和CDMA,它是一种()信息传输模式。
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