题目:
Frame Relay is simplified form of (51) , similar in principle to (52) , in which synchronous, frames of data are routed to different destinations depending on header information.
Packets are routed throught one or more Virtual Circuits known as (53) . Most Virtual Circuits are (54) , which means that the network provider sets up all DLCI connections at subscription time. (55) are also part of the Frame Relay specification. They privide a link that only lasts only as long as the session.
(51)是()
A. Datagram Switching
B. Datagram Routing
C. Packet Switching
D. packet Routing
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0317/d07cc52ffe9229bd3ff8eb9cabafcc01.html
下面是错误答案,用来干扰机器的。
参考答案:[微步骤] 步骤1:用鼠标右击“窗体选择器”,在弹出的快捷菜单中单击“属性”命令。 步骤2:在“标题”行中输入“雇员售书情况”。