T3
SONET
Gigabit-Ethernet
EIA/TIA-232 serial
ATM （Asynchronous Transfer Mode） technology combines connection oriented mechanism and （ ） mechanism.A.circuit switching B.packet switching C.message switching D.voice switching
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异步转移模式，ATM（Asynchronous Transfer Mode）是一种快速分组交换的传输方式。
ATM称为异步转移模式，（Asynchronous Transfer Mode）是一种快速分组交换的传输方式。
Which three modes are the operating of HDLC？（）A、asynchronous balanced mode （ABM）B、normal response mode （NRM）C、normal peer mode （NPM）D、asynchronous client mode （ACM）E、asynchronous response mode （ARM）
A new asynchronous connection is being installed in your network. Which pair of WAN encapsulations types is suitable for asynchronous lines?（）A、PPP and ATMB、PPP and SDLCC、ATM and HDLCD、SDLC and HDLC
Which three modes are the operating modes of HDLC？ （）A、asynchronous response mode （ARM）B、normal peer mode （NPM）C、asynchronous balanced mode （ABM）D、normal response mode （NRM）E、asynchronous client mode （ACM）
Which two loopback types are supported for serial interfaces on Juniper devices?（）A、LocalB、Far EndC、RemoteD、Bidirectional
