--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7181117636 dns-udp-queries-received-ipv6: 1061555770 dns-tcp-queries-received-ipv4: 477860139 dns-tcp-queries-received-ipv6: 72139671 dns-udp-responses-sent-ipv4: 6773353477 dns-udp-responses-sent-ipv6: 1020956424 dns-tcp-responses-sent-ipv4: 369035827 dns-tcp-responses-sent-ipv6: 53339881