Lesson 1: Introduction & Fundamentals
Objective:
Gain a foundational understanding of what computer networks are and their key components.
Content:
– What is a Computer Network?
A computer network is a set of computers connected together for the purpose of sharing resources, such as data, files, internet access, and applications.
– Key Components:
– Nodes: Devices such as computers, laptops, printers, etc.
– Links: Physical or wireless networking mediums that connect nodes.
– Switches/Routers: Hardware that directs the network traffic.
– Types of Networks:
– LAN (Local Area Network): A network in a small geographic area, like an office.
– WAN (Wide Area Network): Covers a larger geographic area, like the internet.
– Read and Watch:
– [Computer network – Wikipedia](en.wikipedia.org/wiki/Computer_network)
– [Computer Networks: Crash Course Computer Science #28](https://www.youtube.com/watch?v=3QhU9jd03a0)
Key Takeaways:
– Understand the definition and purpose of a computer network.
– Identify the basic components and types of computer networks.
– Recognize different real-world applications of networks.
Activity:
Reflect on the different types of networks in your environment (e.g., home or workplace). Identify at least two devices that are part of a network and describe their roles.
Lesson 2: Practical Application & Techniques
Objective:
Explore real-world applications and gain hands-on techniques for working with computer networks.
Content:
– Common Network Devices:
– Router: Guides data packets between networks.
– Switch: Connects devices within a network.
– Firewall: Protects a network by controlling incoming and outgoing traffic.
– Setting Up a Basic Network:
– Components needed and step-by-step instructions on setting up a home network.
– Network Protocols:
– TCP/IP: Protocols that determine how data is exchanged over the internet.
– HTTP/HTTPS: Protocols used in web communication.
– Read and Watch:
– [Basics of Computer Networking – GeeksforGeeks](www.geeksforgeeks.org/basics-computer-networking/)
– [Computer Networking Explained | Cisco CCNA 200-301](https://www.youtube.com/watch?v=tSodBEAJz9Y)
Key Takeaways:
– Gain familiarity with network devices and their purposes.
– Understand basic network setup procedures.
– Learn essential network protocols and their use cases.
Activity:
Try setting up a simple network at home using a router and two devices. Document the process and any challenges faced.
—
Lesson 3: Advanced Insights & Mastery
Objective:
Deepen your understanding with expert-level insights and best practices in computer networking.
Content:
– Advanced Networking Concepts:
– VLANs (Virtual Local Area Networks): Improve network efficiency and security.
– VPNs (Virtual Private Networks): Secure data over the internet.
– Network Security Best Practices:
– Implementing firewalls, encryption, and intrusion detection systems.
– Troubleshooting Networks:
– Common network issues and how to address them using diagnostic tools (e.g., ping, traceroute).
– Read and Watch:
– [Computer Networks: A Systems Approach](book.systemsapproach.org/)
– [Computer Networking Full Course – OSI Model Deep Dive with Real Life Examples](https://www.youtube.com/watch?v=IPvYjXCsTg8)
Key Takeaways:
– Acquire knowledge of advanced networking technologies and security measures.
– Understand the importance of securing networks.
– Learn troubleshooting techniques for resolving network issues.
Activity:
Research and write a brief report on a recent network security breach, detailing what happened and the best practices that could have prevented it.
—
Comprehensive Test
1. What is the primary purpose of a computer network?
a) To increase the number of computers in an organization.
b) To share resources and data.
c) To decrease internet speed.
d) To eliminate the need for routers.
*Answer: b) To share resources and data.*
2. Which device is responsible for guiding data packets between networks?
a) Router
b) Switch
c) Modem
d) Firewall
*Answer: a) Router.*
3. What does a VPN provide?
a) Faster internet speed
b) Unrestricted access to the internet
c) Secure data transmission over the internet
d) A way to avoid using a router
*Answer: c) Secure data transmission over the internet.*
4. Which of the following is a common method for troubleshooting network issues?
a) Installing more routers
b) Using diagnostic tools like ping and traceroute
c) Replacing all cables
d) Ignoring the error
*Answer: b) Using diagnostic tools like ping and traceroute.*
