In this episode of CISSP Hustle & Flow, we dive into secure design principles for network architectures. We break down the OSI and TCP/IP models, IPv4 vs. IPv6, and essential secure protocols like IPSec, SSH, and TLS. We also explore converged protocols, performance metrics, traffic flows, and network segmentation techniques. Whether you're securing physical networks or wireless connections, mastering these concepts is key to passing Domain 4 of the CISSP exam. Tune in and take your network security knowledge to the next level!