This course provides foundational and advanced knowledge in network security. It covers essential topics such as networking protocols, cryptography, firewalls, intrusion detection and prevention systems, and secure remote access. Learners will gain practical skills in identifying and mitigating network attacks, managing access control and authentication, and securing wireless, cloud, and virtualized environments. The course also explores security policies, compliance standards, and incident response strategies, equipping participants with the expertise needed to protect modern network infrastructures.