Unit 875: Comprehensive Networking Fundamentals

1. Introduction to Networking

• Definition of a Network
• Types of Networks
  • Local Area Network (LAN)
  • Wide Area Network (WAN)
  • Metropolitan Area Network (MAN)
• Importance of Networking in the Digital World
• Real-world examples and applications

2. Network Topologies

• Overview of Network Topologies
• Bus Topology
  • Structure and device interconnection
  • Advantages and disadvantages
• Star Topology
  • Structure and device interconnection
  • Advantages and disadvantages
• Ring Topology
  • Structure and device interconnection
  • Advantages and disadvantages
• Mesh Topology
  • Structure and device interconnection
  • Advantages and disadvantages
• Hybrid Topology
  • Combination of topologies
  • Advantages and disadvantages

3. Network Protocols

• Definition and purpose of network protocols
• Common Protocols
  • TCP/IP (Transmission Control Protocol/Internet Protocol)
  • UDP (User Datagram Protocol)
  • HTTP (Hypertext Transfer Protocol)
  • FTP (File Transfer Protocol)
  • Others (SMTP, DNS, DHCP)
• Role of protocols in communication
• Protocol layering and interaction

4. OSI Model

• Introduction to OSI Model
• The Seven Layers
  • Layer 1: Physical
  • Layer 2: Data Link
  • Layer 3: Network
  • Layer 4: Transport
  • Layer 5: Session
  • Layer 6: Presentation
  • Layer 7: Application
• Functions of each layer
• Data flow through OSI layers
• Comparison with TCP/IP model

5. IP Addressing and Subnetting

• IP Address Fundamentals
  • IPv4 addressing format
  • IPv6 basics overview
• Subnetting Concepts
  • Subnet masks
  • CIDR (Classless Inter-Domain Routing) notation
• Calculating subnets and hosts
• Assigning IP addresses
• Practical subnetting exercises

6. Network Devices

• Overview of Network Devices and their roles
• Routers
• Switches
• Hubs
• Modems
• Access Points
• Device functions and how they facilitate communication
• Use cases and deployment scenarios

7. Network Security

• Importance of Network Security
• Firewalls
• Virtual Private Networks (VPNs)
• Encryption Techniques
• Authentication Methods
• Intrusion Detection Systems (IDS)
• Best practices for securing networks

8. Wireless Networking

• Wireless Communication Principles
• Technologies Overview
  • Wi-Fi
  • Bluetooth
  • Near Field Communication (NFC)
  • Cellular Networks
• Wireless Security Considerations
• Best Practices for Wireless Networking

9. Network Troubleshooting

• Common Network Issues
• Troubleshooting Methodologies
• Tools for Network Troubleshooting
  • Ping, Traceroute
  • Network Analyzers
  • Protocol Analyzers
• Step-by-step troubleshooting procedures

10. Network Virtualization

• Concept of Network Virtualization
• Virtual LANs (VLANs)
• Software-Defined Networking (SDN)
• Virtual Network Functions (VNF)
• Benefits of Virtualizing Network Resources
• Use cases and future trends