The correct configuration for handling unpredictable web traffic spikes while preventing a single point of failure is introducing a load balancer. This device or software application will efficiently distribute incoming network traffic across a group of backend servers. Clustering, while it provides high availability and failover capabilities, does not inherently distribute individual user requests evenly across servers to balance load. An inverse proxy, commonly known as a reverse proxy, can distribute traffic but lacks the specific algorithmic capabilities that a dedicated load balancer provides for handling traffic spikes. RAID, which stands for Redundant Array of Independent Disks, is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for data redundancy or performance improvement, but it does not deal with distributing network traffic.