SDLC was invented by IBM to replace the older Bisynchronous protocol for wide area connections between IBM equipment. A varietion of the (71) protocol called NRM is essentially the same as SDLC. SDLC is (72) protocol like HDLC, Frame Relay or X.25.An SDLC network is made up of (73) that controls all communications, and (74) . It is capable of (75) operation, but almost all practical applications are strictly half duplex.
（75）是（）
A:half duplex B:full duplex C:half or full duplex D:half and full duplex
SDLC was invented by IBM to replace the older Bisynchronous protocol for wide area connections between IBM equipment. A varietion of the (71) protocol called NRM is essentially the same as SDLC. SDLC is (72) protocol like HDLC, Frame Relay or X.25.An SDLC network is made up of (73) that controls all communications, and (74) . It is capable of (75) operation, but almost all practical applications are strictly half duplex.
A:half duplex B:full duplex C:half or full duplex D:half and full duplex
SDLC was invented by IBM to replace the older Bisynchronous protocol for wide area connections between IBM equipment. A varietion of the (50) protocol called NRM is essentially the same as SDLC.
SDLC is (51) protocol like HDLC, Frame Relay or X.25.An SDLC network is made up of (52) that controls all communications, and (53) .It is capable of (54) .operation, but almost all practical applications are strictly half duplex.
54（）
A:halfduplex B:full duplex C:half or full duplex D:half and full duplex
两台交换机相逢，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为默认的duplexauto时，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是______。
A:duplex full duplex half B:duplex half duplex full C:duplex half duplex half D:duplex full duplex full
两台交换机相连，要求两个端口工作在全双工通信方式下。若端口的通信方式为默认的duplex auto时，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是
A:duplex full deplex half B:duplex half duplex full C:duplex half duplex half D:duplex full deplex full
两台交换机相连，要求两个端口工作在全双工通信方式下。若端口的通信方式为默认的duplex auto时，有时会出现大量丢包现象。这时，需要重新配置端口的通信方式，其正确的配置语句是（）。
A:duplex full duplex half B:duplex half duplex full C:duplex half duplex half D:duplex full duplex full
两台交换机相连，要求两个端口工作在全双工通信方式下。若端口的通信方式为默认的duplex auto时，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是
A:duplex full deplex half B:duplex half duplex full C:duplex half duplex half D:duplex full deplex full
两台交换机相连，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为缺省的duplexauto，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是（）
A:duplex full duplex half B:duplex half duplex full C:duplex half duplex half D:duplex full duplex full
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