There are 3 things mandatory for Zone: name, dnsName and description. In my opinion, it either makes sense to allow for creating zone with name being mandatory and the rest to be part of the builder, or require all three in ZoneInfo.builder(String name, String dnsName, String description). I am inclined to the first option. Should we ask for name only, or for all three?

/cc @ajkannan @aozarov @mziccard