Kaito has deployed a system that accepts traffic from web browsers and distributes it to systems based on the number of connections that each server has. He has assigned each server a rating based on how powerful it is. Each time a new request comes in, requests are sent to the system with the lowest number of connections after taking into account the relative rating of each server. What type of load balancing is Kaito using?

Kaito is using a weighted least connection load balancing approach, which distributes traffic based on both a server weight and connection number count. Source IP hashing uses a hash of the source and destination IP addresses to determine which server receives the connection. This also allows for interrupted sessions to go to the same server. Resource-based load balancing takes into account the availability of resources like CPU, memory, and network bandwidth for a server. Round-robin load balancing simply distributes connections as they come in by moving through a list of servers.