Imagine that you and your friends are playing a game of telephone. Imagine that you are sitting in a circle, and you whisper a message to your friend beside you. Then, that friend whispers the message to the next person, and the message gets passed around the circle until it gets back to you. This is how network architecture works.
A network is a group of computers, servers, printers, and other devices that are all connected together, just like you and your friends in the game of telephone. These devices are connected using wires or wireless signals, and they can talk to each other, just like you and your friends passing the message around the circle.
Just like in the game of telephone, there needs to be a way for the devices in the network to know where the message needs to go. This is where network architecture comes in. Network architecture is like the rule book for the game of telephone. It tells the devices in the network how to communicate with each other, and how to find the message they need.
There are many different types of network architecture, but most networks have a few things in common. First, there is usually a central device, called a server, that helps to manage the network. This server keeps track of all the devices in the network, and helps to decide where messages should be sent.
Second, there are usually different layers in the network architecture. Each layer has a specific job, like sending messages between devices, or making sure that the messages are secure. Think of it like a cake - each layer has a different flavor and texture, but they all work together to make the cake delicious.
Finally, there are different types of networks. Some networks are small, like the network you might have at home with your family's computers and devices. Other networks are huge, like the internet, which connects billions of devices all over the world.
In summary, network architecture is like the rule book for the game of telephone. It tells devices in a network how to talk to each other, and how to find the message they need. It includes a central device to manage the network, different layers with specific jobs, and different types of networks that can vary in size and complexity.