What rule is used to split DHCP scopes to allow fault tolerance?

To enable fault tolerance in DHCP (Dynamic Host Configuration Protocol), the "50/50 split" rule is typically used, where two DHCP servers share the same scope. Each server is configured to handle 50% of the available IP addresses within the scope, ensuring that if one server fails, the other can still lease IP addresses to clients. This setup helps maintain network availability and reliability by providing redundancy. Additionally, the two servers can be configured to communicate with each other to avoid IP address conflicts.