This podcast focuses on safeguarding network infrastructure, traffic, and data assets. The Network+ Domain 4 is anchored by the CIA Triad: Confidentiality (keeping data private using encryption and multi-factor authentication), Integrity (ensuring accuracy using hashing and digital signatures), and Availability (maintaining system uptime via redundancies). Modern networks also incorporate Zero Trust Architecture, which assumes no default trust and mandates policy-based authentication and least-privilege access.

Administrators must defend against diverse network attacks. These include social engineering (such as phishing), malware (such as human-activated viruses and self-replicating worms), and tech ...