Which topology offers the highest fault tolerance and redundancy?

A mesh topology provides the highest level of fault tolerance and redundancy among the available network topologies. In a mesh network, each device (or node) is interconnected with multiple other nodes, allowing for multiple pathways for data transmission. This means if one connection fails, data can be rerouted through other paths without impacting overall network performance. Mesh networks can be fully meshed, where every node connects to every other node, or partially meshed, where only some nodes have multiple connections. The flexibility and robustness of mesh topology make it ideal for environments where reliability is critical, such as in military or mission-critical applications. Why Other Options are Wrong: A) Star topology can isolate a failed node, but if the central hub fails, the entire network is impacted. B) Ring topology offers limited redundancy; if one connection fails, it can disrupt the whole network. C) Bus topology relies on a single central cable; failure in this cable can take down the entire network. E) Tree topology is hierarchical and can have single points of failure, thus not providing the same level of fault tolerance as a mesh.