--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6937607462 dns-udp-queries-received-ipv6: 1173850421 dns-tcp-queries-received-ipv4: 663269254 dns-tcp-queries-received-ipv6: 74878259 dns-udp-responses-sent-ipv4: 6287416830 dns-udp-responses-sent-ipv6: 1129062653 dns-tcp-responses-sent-ipv4: 469480321 dns-tcp-responses-sent-ipv6: 54294946