Which approach involves multiple redundant processing nodes that share data and accept connections to provide redundancy in case of failure?

The approach that involves multiple redundant processing nodes sharing data and accepting connections to ensure redundancy in the event of a failure is clustering. In a clustering setup, multiple servers or nodes work together as a single system to provide high availability and fault tolerance. If one node fails, others in the cluster can take over, ensuring that services remain operational with minimal interruption. This setup enhances reliability and improves performance, as workloads can be distributed among the active nodes.

Clustering is commonly used in environments where uptime is critical, such as in database management systems and web server management. By combining multiple nodes, clustering offers a strategy where failure of one component does not lead to system downtime, emphasizing redundancy and resilience in system architecture.