Which of the following is true about a mesh topology?

In a mesh topology, every device is interconnected with one another, which permits multiple pathways for data to travel between any two devices on the network. This means that if one link fails, there still exists alternative paths for data to be routed, enhancing reliability and redundancy. This characteristic is particularly beneficial in maintaining network performance and availability, as it minimizes the impact of individual device or link failures.

The other choices do not accurately represent the features of mesh topology. For instance, it is typically more expensive compared to other topologies like star topology due to the extensive cabling and complexity involved in its implementation. Additionally, rather than providing the least redundancy, mesh topology is known for its high redundancy since multiple connections facilitate alternative routes. Finally, it is generally more complex to set up and manage due to the numerous interconnections involved, making troubleshooting and maintenance more challenging when compared to simpler network topologies like star or bus.