Module 04: Network Security (Domain 4)
📅 Date Started: 2026-04-25
📅 Date Completed: 2026-04-25
🎯 What I Learned:
- Networking Fundamentals: OSI model, TCP/IP suite, IPv4/IPv6, ports, and protocols
- Network Threats: DDoS, MITM, malware (virus, worm, Trojan), and side-channel attacks
- Detection & Prevention Tools: IDS/IPS, HIDS/NIDS, firewalls, antivirus, and vulnerability scanning
- Security Infrastructure: Network segmentation (VLAN, DMZ, VPN), defense-in-depth, NAC
- Cloud Security Models: IaaS, PaaS, SaaS, hybrid environments, and SLA considerations
💡 Key Takeaways:
- Understanding network architecture is essential for identifying and mitigating threats
- No single tool provides complete protection; layered security is non-negotiable
- Cloud security requires shared responsibility awareness between provider and customer
🔗 Links/Resources:
- ISC2 CC Network Security Domain (https://www.isc2.org/certifications/cc)
- Cloud Security Alliance Guidance (https://cloudsecurityalliance.org)
📸 Screenshots:
Domain 4 completion badge