Network Fundamentals

Network Fundamentals

Hey everyone, welcome back to my blog!

As I continue on my journey to becoming Network+ certified, I wanted to share my progress and notes with all of you. In this post, I'll be covering some of the key concepts I've learned so far, including collision domains, broadcast domains, latency, throughput, and more!

I'll also be diving into the different types of network connectivity devices, such as hubs, switches, bridges, and routers.

My goal is to not only help myself retain this information, but also to help others who may be studying for the Network+ certification or just looking to learn more about networking.

So, let's get started

  1. Collision: When two or more devices transmit data at the same time, causing interference and data loss.

  2. Collision Domain: A network segment where collisions can occur, typically in Ethernet networks using CSMA/CD (Carrier Sense Multiple Access/Collision Detection).

  3. Broadcast: A data transmission sent to all devices on a network.

  4. Broadcast Domain: A network segment where broadcasts are forwarded, typically a VLAN (Virtual Local Area Network).

  5. Latency: The time delay between sending and receiving data over a network.

  6. Throughput: The amount of data successfully transmitted over a network in a given time.

  7. Anycast: A communication method where data is sent to the nearest available receiver.

  8. Unicast: A communication method where data is sent to a single specific receiver.

  9. Multicast: A communication method where data is sent to multiple specific receivers.

Network Connectivity Devices

  1. Hub: A simple network device that connects multiple devices together, repeating incoming data to all connected devices.

  2. Switch: A network device that connects multiple devices together, forwarding incoming data to the intended recipient based on MAC addresses.

  3. Bridge: A network device that connects two or more network segments together, filtering and forwarding traffic between them.

  4. Router: A network device that connects multiple networks together, routing traffic between them based on IP addresses and network prefixes.

That's it for today's post on my Network+ journey! I hope you found the information helpful, and I'm excited to continue sharing my progress with you all.

If you have any feedback, suggestions, or topics you'd like me to cover in future posts, please don't hesitate to leave a comment below. I'd love to hear from you and continue the discussion!

Thanks for reading, and I'll see you in the next post!