--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4577693385 dns-udp-queries-received-ipv6: 518191725 dns-tcp-queries-received-ipv4: 198902588 dns-tcp-queries-received-ipv6: 19021986 dns-udp-responses-sent-ipv4: 4483943696 dns-udp-responses-sent-ipv6: 515318545 dns-tcp-responses-sent-ipv4: 173777308 dns-tcp-responses-sent-ipv6: 19019011