--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7342894399 dns-udp-queries-received-ipv6: 1278976736 dns-tcp-queries-received-ipv4: 482899224 dns-tcp-queries-received-ipv6: 109396927 dns-udp-responses-sent-ipv4: 6973742535 dns-udp-responses-sent-ipv6: 1204604824 dns-tcp-responses-sent-ipv4: 364651805 dns-tcp-responses-sent-ipv6: 74179743