Basic Round Robin distributes traffic evenly across multiple servers. You can think of it as a rotor that cyclically returns one endpoint at a time. For instance, if you had two or more records (A, AAAA, ANAME, CNAME) with the same name configured to point to different IP addresses, then queries will have a 50/50 chance of being returned by either of the IPs in your configuration.
Continue Reading about Round Robin vs. Weighted Round Robin Load Balancing
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