CISSP Domain 4: Communication & Network Security Explained 2025 (OLD)

🆕 UPDATED 2026 VERSION of this lesson: CISSP Domain 4 full course →    • CISSP Domain 4: Mastering Communication an...   🎙️ Welcome to the CISSP Podcast! Domain 4: Communication & Network Security Whether you’re preparing for the CISSP exam or just boosting your cybersecurity knowledge, this podcast has you covered! 📚 Explore More CISSP Resources on Our Channel: 🔹 CISSP Shorts – Key Concepts in 60 Seconds Catch quick, visual explanations of the most important CISSP concepts in our YouTube Shorts playlist: 👉    • CISSP Shorts   🔹 CISSP Practice Question Series Test yourself with real CISSP-style questions and get detailed explanations in our dedicated playlist: 👉    • CISSP Practice Questions Shorts: Questions...   ✨ Interested in Exclusive Perks? Join our channel membership for extra resources and benefits! Click here to become a member (or tap "Join" next to Subscribe).    / @techexplainedbykp   🌐 Accessibility: Turn on Closed Captions (“CC”) and use Auto-translate to watch in your language! Supported languages include: Arabic, Chinese (Traditional), Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Thai, Ukrainian, Vietnamese... and more! Just tap the “CC” (Closed Captions) button on the video and select Auto-translate, then choose your language. 🙌 🌐 Available languages include: Arabic, Chinese (Traditional), Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Thai, Ukrainian, Vietnamese... and more! In this episode, we cover CISSP Domain 4: Communication and Network Security, covering essential concepts to help you ace the CISSP exam. Learn about: CISSP Domain 4: Communication & Network Security 00:00 - Introduction to CISSP Domain 4: Communication & Network Security 00:30 - Understanding the OSI Model 01:28 - Layer 1: Physical Layer (Cables, Wi-Fi, and Binary Transmission) 03:58 - Network Topologies & Protocols (Bus, Star, Mesh, CSMA/CD) 04:54 - Layer 2: Data Link Layer (MAC Addresses, Switches, ARP) 07:25 - Layer 3: Network Layer (IP Addresses, Routing, IPv4 & IPv6) 12:20 - Layer 4: Transport Layer (TCP vs. UDP Explained) 16:17 - Layer 5: Session Layer Overview 17:45 - Layer 6: Presentation Layer (Data Formatting & Encryption) 18:42 - Layer 7: Application Layer & Common Protocols 20:39 - Defense in Depth: Securing Networks 22:05 - Network Segmentation & DMZs 23:32 - Types of Firewalls Explained 26:18 - Intrusion Detection Systems (IDS) & Intrusion Prevention Systems (IPS) 27:43 - Honeypots & Their Role in Security 28:40 - The Importance of User Security Training (The Human Factor) 29:39 - Secure Remote Access & VPNs (Virtual Private Networks) 31:55 - VPN Protocols (IPSec, SSL/TLS) 33:54 - Remote Authentication Protocols (RADIUS, TACACS+) 35:20 - SNMP & Secure Network Management 36:46 - Stages of Network Attacks (Reconnaissance & Enumeration) 40:04 - Common Network Attacks (Eavesdropping, SYN Floods, DDoS, IP Spoofing) 44:46 - Man-in-the-Middle (MitM) Attacks & ARP Poisoning 46:11 - Defending Against Network Attacks (Encryption, Certificates) 48:30 - Virtualization for Security (VLANs & SDN) 51:17 - Key Takeaways & Future Security Challenges (IoT, Awareness, and Preparedness) ✅ Networking protocols (WAN, wireless, IP addressing) ✅ Network defense strategies (firewalls, IDS/IPS, honeypots) ✅ Remote access security (VPNs, authentication protocols) ✅ OSI Model deep dive and network attacks ✅ Zero Trust, network segmentation, and security best practices Our Mission & Method: This podcast is an exploration of how we can learn better in the modern age. Our team performs all the core research, develops the ideas, and writes the content you hear. In the spirit of our mission, we partner with AI tools to help organize our findings and polish our production. It’s a human-AI collaboration designed to bring you clear, insightful episodes. We're learning as we go and welcome your feedback on this journey! ⚠️ **Note**: This content is not endorsed by (ISC)². Always cross-reference official materials #CISSP2025 #cissp #CyberSecurity #NetworkSecurity #CISSPExam #Infosec #EthicalHacking #ITSecurity #OSImodel #VPN #Firewalls #ZeroTrust .