What type of network topology provides high reliability and redundancy?

Question

BlackTom AI · Accepted Answer

First, consider the context: the question asks which network topology provides high reliability and redundancy.
Option 1: Bus. This topology uses a single shared cable, which creates a single point of failure and limited redundancy; if the main cable fails or there is a collision, many nodes are affected, reducing reliability.
Option 2: Ring. In a ring topology data travels in one direction around a closed loop. If a single link or node fails, the network can be disrupted unless there are fault-tolerance measures like dual rings or bypass mechanisms; basic ring setups are less inherently redundant than others.
Option 3: Star. A star topology centers on a central hub or switch; while it isolates failures to individual nodes and is easy to manage, the central device becomes a potential single point of failure that can impact the entire network’s reliability if the hub fails.
Option 4: Mesh. In a mesh topology, every node connects to multiple other nodes, providing multiple pathways for data. This intrinsic Redundancy means that if one link or node fails, traffic can be rerouted through alternate paths, delivering high reliability and fault tolerance.
In summary, the key distinction lies in redundancy: bus and ring offer some resilience but not equivalent, star centralizes risk, whereas mesh explicitly enables multiple concurrent paths, minimizing the impact of any single failure and enhancing overall reliability. Therefore, mesh topology best satisfies the requirement for high reliability and redundancy.

What type of network topology provides high reliability and redundancy?单项选择题

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