--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8391282438 dns-udp-queries-received-ipv6: 1411274295 dns-tcp-queries-received-ipv4: 822585829 dns-tcp-queries-received-ipv6: 72677987 dns-udp-responses-sent-ipv4: 7586080228 dns-udp-responses-sent-ipv6: 1369577016 dns-tcp-responses-sent-ipv4: 571187496 dns-tcp-responses-sent-ipv6: 53334814