单选题
ATM (Asynchronous Transfer Mode) technology combines connection oriented mechanism and () mechanism.
Acircuit switching
Bpacket switching
Cmessage switching
Dvoice switching
正确答案
答案解析
ATM(异步传输模式)技术联合面向连接机制和()机制。A.电路交换B.包交换C.消息交换D.语音交换