Network Security Fundamentals: CIA Triad, Firewalls, Encryption & More 🔒

Welcome to **Day 4 of Computer Networks Interview Series** 🚀 In this video, we cover **Network Security concepts** that are extremely important for both **placements and interviews**. You’ll learn about **firewalls, encryption, threats, and CIA triad**, all explained in a simple and interview-focused manner. 📘 **Topics Covered in Day 4**: * CIA Triad (Confidentiality, Integrity, Availability) * Firewall vs IPS (Intrusion Prevention System) * Zone-based Firewall (Stateful firewall) * Threat vs Vulnerability vs Risk * Symmetric vs Asymmetric Encryption * Diffie-Hellman Groups (Security Levels) 📑 **Download Notes (Day 4)** 👉 [Click Here](https://excalidraw.com/#json=hFcJvZnVD5eQxQ6IP2mRe,QwEAH8mdwLkL8C9Cxsm27Q) 🎯 Best for: * **Placement preparation** (Amazon, Microsoft, Infosys, TCS, Wipro, Accenture, etc.) * **Computer Science / IT students** * **Quick revision before interviews** 👉 Don’t forget to check out the **complete playlist: "Crack Computer Networks in 7 Days | 50+ Interview Questions"** --- ## 🔥 Hashtags: \#Day4 #LogicnLearn #ComputerNetworks #CN #NetworkSecurity #SecurityBasics #CIATriad #Confidentiality #Integrity #Availability #Firewall #IPS #IntrusionPreventionSystem #ZoneBasedFirewall #StatefulFirewall #SymmetricEncryption #AsymmetricEncryption #DiffieHellman #Encryption #Threat #Vulnerability #Risk #CyberSecurity #NetworkingForPlacements #CNInterviewQuestions #InterviewPreparation #Placements #EngineeringPlacements #CampusPlacements #JobInterviews #TechInterviews #NetworkingConcepts #NetworkingCrashCourse #ComputerScience #InformationTechnology #CSPlacements #ITPlacements #QuickRevision #CNSeries #NetworkingNotes #PlacementPrep #CampusToCorporate #EngineeringStudents #TechJobs