Which topology can provide redundancy in network design?

The dual-star topology is recognized for its ability to provide redundancy in network design. In a dual-star configuration, there are two star networks connected to a central point, ensuring that if one star fails or experiences issues, the other star can still maintain network operations. This redundancy is crucial in environments where continuous network availability is important, as it minimizes potential downtime and enhances reliability.

In contrast, other topologies like the star topology can experience a single point of failure at the central hub. Should that hub fail, all connected devices lose network access. Similarly, the ring topology, while it can operate efficiently, does not inherently include features for redundancy. In a standard ring setup, if one connection goes down, it can disrupt the entire network loop, making it less robust against failure.

Therefore, the dual-star topology stands out as the correct answer due to its combination of star configurations that allows for failover capabilities, promoting resilience in network design.