--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5777518859 dns-udp-queries-received-ipv6: 605548098 dns-tcp-queries-received-ipv4: 254990199 dns-tcp-queries-received-ipv6: 19274424 dns-udp-responses-sent-ipv4: 5584134455 dns-udp-responses-sent-ipv6: 596165519 dns-tcp-responses-sent-ipv4: 198940252 dns-tcp-responses-sent-ipv6: 19074676