--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7327607594 dns-udp-queries-received-ipv6: 1205175166 dns-tcp-queries-received-ipv4: 663083397 dns-tcp-queries-received-ipv6: 73923150 dns-udp-responses-sent-ipv4: 6721561458 dns-udp-responses-sent-ipv6: 1162116861 dns-tcp-responses-sent-ipv4: 468081101 dns-tcp-responses-sent-ipv6: 54605446