ATM (Asynchronous Transfer Mode) technology combines connection oriented mechanism and （） mechanism.A.circuit switchingB.packet switchingC.message switchingD.voice switching
ATM (Asynchronous Transfer Mode) technology combines connection oriented mechanism and （） mechanism.
A.circuit switching
B.packet switching
C.message switching
D.voice switching
B.packet switching
C.message switching
D.voice switching
参考解析
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
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问答题简述异步传输模式（asynchronous transfer mode，ATM）的特点。