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IGNOU MSEI 22 - Network Security is not available. However, I can provide a general outline of potential topics that might be covered in a course focusing on network security. Here's a quick overview:Introduction to Network Security:Importance of network security in protecting data and systems.Overview of common network security threats and attacks.Network Security Fundamentals:Principles of secure network design and architecture.Defense-in-depth approach to network security.Security policies, standards, and procedures.Firewalls:Types of firewalls: packet-filtering, stateful inspection, application-layer.Firewall configurations and rule sets.Intrusion detection and prevention systems (IDS/IPS) integrated with firewalls.Virtual Private Networks (VPNs):Overview of VPN technologies: IPsec, SSL/TLS, PPTP, L2TP.VPN deployment models: site-to-site, remote access.Securing VPN connections: encryption, authentication, tunneling protocols.Secure Wireless Networks:Wireless network security threats and vulnerabilities.Wi-Fi security protocols: WEP, WPA, WPA2, WPA3.Securing wireless access points and networks: SSID hiding, MAC filtering, guest networks.Network Access Control (NAC):Role of NAC in enforcing security policies for network access.NAC components: authentication, authorization, remediation.Implementing NAC solutions to control access to network resources.Secure Routing and Switching:Securing routers and switches: access control lists (ACLs), VLANs, port security.Routing protocols security: OSPF, BGP, EIGRP.Network segmentation and isolation to prevent lateral movement of threats.Network Security Protocols:Secure network communication protocols: HTTPS, SSH, SCP, SFTP.Securing DNS: DNSSEC, DNS filtering.Network time synchronization: NTP security considerations.Network Monitoring and Forensics:Network traffic analysis tools and techniques.Intrusion detection and prevention systems (IDS/IPS).Network forensics: collecting and analyzing network evidence of security incidents.