文件名称:DDR介绍-CCNA中文版PPT
文件大小:10.75MB
文件格式:PPT
更新时间:2024-05-15 11:39:48
CCNA
DDR介绍 PSTN ISDN I need to send data to Dallas. Dallas Corporate Chicago 需要的时候连接 完成后断开 ISDN 或 PSTN * Purpose: This figure introduces students to DDR. Emphasize: Explain that DDR is used to refer to a collection of dialup features.