Mesh Topology is a type of network structure where each device, or node, is connected to multiple other nodes. This creates multiple communication paths, improving reliability and fault tolerance. If one connection fails, the data can still reach its destination through alternative routes. Mesh networks are highly scalable and adapt well to changing conditions, which makes them suitable for IoT deployments. However, they require more resources and can be complex to manage compared to simpler topologies. Their main advantage is resilience and efficiency in environments with many interconnected devices.