MÓDULO 1 - Video 1: Topologías y medios de transmisión

Key Takeaways

• Network topology defines the physical structure of device connections, dictating how data travels, how access is controlled, and how the network responds to hardware failures or traffic demands.
• The bus topology uses a single shared cable for all devices, which creates significant performance bottlenecks due to data collisions and makes the entire network vulnerable to single-point cable failures.
• Token Ring networks utilize a circulating 'token' to manage data transmission, effectively eliminating collisions by ensuring only one device transmits at a time, though it has been largely superseded by Ethernet.
• Star topology is the modern standard for local networks, utilizing a central switch to provide dedicated communication channels, which isolates faults to individual devices rather than crashing the entire network.
• Tree or hierarchical topology organizes networks into levels, facilitating easy expansion and logical segmentation, making it the preferred architecture for large multi-story buildings and complex institutional infrastructures.
• Mesh topology prioritizes high availability and redundancy by providing multiple paths for data, ensuring that if one route fails, traffic is automatically rerouted, a principle that forms the backbone of the internet.
• Hybrid topologies combine multiple network structures to leverage the specific strengths of each, providing the flexibility and resilience required for large-scale enterprise environments despite increased management complexity.