当前学科:系统集成项目管理综合练习
  • 题目: 单选
    Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.

      A . connection oriented
      B . connectionless
      C . high bandwidth utilization
      D . poor real-time

    答案: <查看本题扣1积分>

    查看答案

    答案不对?请尝试站内搜索