Learning Objectives
5 objectives- Understand fundamental computer networking concepts and components.
- Identify and differentiate types of networks and network topologies.
- Explain key network protocols and the OSI model layers.
- Apply IP addressing and subnetting principles for network configuration.
- Recognize network security practices and wireless networking technologies.
Content Outline
PreviewUnit 369: Computer Networking Fundamentals
1. Introduction to Computer Networking
- Definition and importance of computer networking
- Key terminologies: nodes, links, bandwidth, latency, protocols
- Basic network components: routers, switches, hubs, modems, servers, clients
2. Types of Networks
- Local Area Network (LAN)
- Characteristics and typical use cases
- Wide Area Network (WAN)
- Characteristics and examples
- Metropolitan Area Network (MAN)
- Definition and application scenarios
- Wireless Local Area Network (WLAN)
- Wi-Fi basics and coverage
3. Network Topologies
- Bus Topology
- Structure, advantages, disadvantages
- Star Topology
- Structure, advantages, disadvantages
- Ring Topology
- Structure, advantages, disadvantages
- Mesh Topology
- Full and partial mesh, pros and cons
- Hybrid Topology
- Combination of topologies, use cases
4. Network Protocols
- TCP/IP Protocol Suite
- Overview and significance
- Hypertext Transfer Protocol (HTTP)
- Web communication basics
- File Transfer Protocol (FTP)
- File exchange over networks
- Other important protocols: SMTP, DHCP, DNS (brief overview)
5. OSI Model
- Purpose and importance
- Seven layers explained:
- Physical
- Data Link
- Network
- Transport
- Session
- Presentation
- Application
- Examples of protocols and devices at each layer
6. IP Addressing and Subnetting
- IPv4 addressing structure and classes
- IPv6 introduction and advantages
- Subnetting concepts and subnet masks
- Assigning IP addresses: static vs dynamic (DHCP)
- Calculating subnets and hosts
7. Network Security
- Common network threats: malware, phishing, DoS attacks
- Encryption techniques and protocols (SSL/TLS, VPN)
- Firewalls: types and functions
- Best security practices: strong passwords, updates, segmentation
8. Wireless Networking
- Wi-Fi standards and frequencies
- Bluetooth technology basics and use cases
- Cellular networks: 3G, 4G, 5G overview
- Challenges: interference, security, range
9. Network Troubleshooting
- Common network issues: connectivity, slow speeds, IP conflicts
- Troubleshooting methodologies: identify, isolate, resolve
- Tools: ping, traceroute, ipconfig/ifconfig, nslookup
- Practical examples and case studies
10. Cloud Computing and Networking
- Role of networking in cloud computing
- Virtualization concepts
- Software-Defined Networking (SDN) overview
- Impact on modern network infrastructures and future trends
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