소개
This skill equips developers and security professionals with the essential knowledge required to design, configure, and troubleshoot network architectures. It provides deep dives into the OSI model, TCP/IP addressing, and subnetting, alongside practical command references for Cisco routers and switches. Whether you are setting up VLANs, managing Access Control Lists (ACLs), or preparing for a security assessment, this guide serves as a comprehensive manual for understanding how data moves across a network and how to secure its flow.
