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What is Network Security?

Course Content
Module 1: Introduction to Network Security
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What is Network Security?
Importance of Cybersecurity in Modern Networks
Types of Cyber Threats (Malware, Phishing, DoS)
CIA Triad (Confidentiality, Integrity, Availability)
Real-World Cyber Attacks (Case Studies)
Module 2: Networking Fundamentals for Security
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OSI Model Explained (Security Perspective)
TCP/IP Model and Protocols
IP Addressing & Subnetting Basics
Common Network Devices (Router, Switch, Firewall)
Ports and Services (HTTP, HTTPS, FTP, SSH)
Module 3: Threats, Attacks & Vulnerabilities
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Types of Network Attacks (MITM, DoS, DDoS)
Malware Types (Virus, Worm, Trojan, Ransomware)
Social Engineering Attacks
Vulnerabilities and Exploits
Introduction to CVE & Security Databases
Module 4: Network Security Devices & Controls
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Firewalls (Types and Working)
IDS vs IPS
Proxy Servers
Network Access Control (NAC)
Endpoint Security Basics
Module 5: Encryption & Secure Communication
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Basics of Cryptography
Symmetric vs Asymmetric Encryption
SSL/TLS and HTTPS
VPN (Types and Use Cases)
Public Key Infrastructure (PKI)
Module 6: Network Monitoring & Tools
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Introduction to Network Monitoring
Packet Analysis using Wireshark
Network Scanning with Nmap
Log Analysis Basics
SIEM Overview
Module 7: Secure Network Design
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Network Segmentation
DMZ (Demilitarized Zone)
Zero Trust Security Model
Secure Wireless Networks
Best Practices for Network Hardening
Module 8: Incident Response & Best Practices
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What is Incident Response?
Steps in Incident Handling
Risk Management Basics
Backup and Recovery
Security Policies & Awareness
Network Security
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