01UndergraduateComputer Network计算机网络课程复习提纲，整理协议与网络设备的基本概念，以及 CRC、信道容量、帧长、路由、流量整形和 TCP 拥塞控制等计算与问答要点。↗02UndergraduateNetwork SecurityA network security revision summary covering web vulnerabilities, botnets, email and spam, program analysis, denial-of-service attacks, and network defenses.↗