Network Lesson 9: Communication & Topologies

Network Communication

The process of devices sending and receiving data over a network.

Wired Communication

Devices communicate using physical cables.

Wireless Communication

Devices communicate without cables, using radio waves or Wi-Fi.

Network Protocols

Rules and standards that define how data is transmitted and received in a network.

TCP/IP

Protocol for sending data over the internet, ensuring reliable delivery.

HTTP/HTTPS

Protocols for transferring web pages; HTTPS is secure.

FTP

File Transfer Protocol, used for transferring files between computers.

Network Topologies

The physical or logical arrangement of devices in a network.

Star Topology

All devices are connected to a central hub or router.

Star Topology

Star Topology

Easy to manage, scalable, fault-tolerant (one device failure does not affect others).

Star Topology

If the central hub fails, the entire network goes down.

Bus Topology

All devices are connected to a single central cable (backbone).

Bus Topology

Bus Topology

Simple, cost-effective, uses less cabling.

Bus Topology

If the backbone cable fails, the entire network fails.

Ring Topology

Devices connected in a circular loop.

Ring Topology

Ring Topology

Data flows in one direction, reducing collisions.

Ring Topology

A single failure can disrupt the entire network.

Mesh Topology

Every device connects to multiple other devices.

Mesh Topology

Mesh Topology

High redundancy and reliability.

Mesh Topology

Expensive and complex to set up.

Hybrid Topology

Combination of two or more network topologies.

Hybrid Topology

Hybrid Topology

Flexible and scalable.

Hybrid Topology

Requires more resources to manage.