--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5475800938 dns-udp-queries-received-ipv6: 562979444 dns-tcp-queries-received-ipv4: 243017012 dns-tcp-queries-received-ipv6: 17914997 dns-udp-responses-sent-ipv4: 5303388018 dns-udp-responses-sent-ipv6: 558546773 dns-tcp-responses-sent-ipv4: 197546437 dns-tcp-responses-sent-ipv6: 17922742