Part I: Networking Concepts

• Lesson 1: The OSI Model and Encapsulation – the purpose of reference models; the OSI model; the TCP/IP stack
• Lesson 2: Networking Appliances, Applications, and Functions – physical and virtual appliances; applications and functions
• Lesson 3: Cloud Concepts – network functions virtualization (NFV); cloud networking components; deployment models; service models; key cloud concepts
• Lesson 4: Networking Ports, Protocols, Services, and Traffic Types – ports and protocols; Internet Protocol (IP) types; traffic types
• Lesson 5: Transmission Media and Transceivers – wireless; copper and fiber media and connectors; multiplexing in fiber-optic networks
• Lesson 6: Network Topologies, Architectures, and Types – defining a network; network types and characteristics; networks defined by resource location; networks defined by topology; the three-tier hierarchical model
• Lesson 7: IPv4 Addressing – binary numbering; IPv4 addressing; assigning IPv4 addresses; subnetting
• Lesson 8: Evolving Use Cases – SDN and SD-WAN; Virtual Extensible LAN (VXLAN); Zero Trust Architecture (ZTA); SASE and SSE; Infrastructure as Code (IaC); IPv6

Part II: Network Implementation

• Lesson 9: Routing Technologies – routing; sources of routing information; routing protocol characteristics and examples; address translation; First Hop Redundancy Protocol (FHRP)
• Lesson 10: Ethernet Switching Technologies – principles of Ethernet; Ethernet switch features
• Lesson 11: Configure Wireless Devices and Technologies – introducing wireless LANs; deploying wireless LANs; securing wireless LANs
• Lesson 12: Physical Installations – important installation implications; power; environmental factors

Part III: Network Operations

• Lesson 13: Organizational Processes and Procedures – documentation; processes and procedures
• Lesson 14: Network Monitoring – network monitoring methods; monitoring solutions
• Lesson 15: Disaster Recovery – high availability
• Lesson 16: IPv4 and IPv6 Network Services – dynamic addressing; name resolution; time protocols
• Lesson 17: Network Access and Management Methods – virtual private networks (VPNs); other network access technologies; authentication and authorization considerations; in-band vs. out-of-band management

Part IV: Network Security

• Lesson 18: Network Security Concepts – core security concepts; authentication methods; risk management and SIEM; physical security; audits and regulatory compliance
• Lesson 19: Types of Network Attacks – technology-based attacks; social engineering attacks; other miscellaneous attacks
• Lesson 20: Network Security Features – device hardening; network access control (NAC); other network security features

Part V: Network Troubleshooting

• Lesson 21: A Network Troubleshooting Methodology – troubleshooting basics
• Lesson 22: Troubleshoot Common Cabling Problems – specifications and limitations; common cable, interface, and hardware issues; common tools
• Lesson 23: Troubleshoot Common Issues with Network Services – considerations for general network troubleshooting; common network service issues
• Lesson 24: Troubleshoot Common Performance Issues – network performance considerations; wireless performance considerations and issues; wireless network troubleshooting solutions
• Lesson 25: Network Troubleshooting Tools – software tools; command-line tools; basic networking device commands; hardware tools