--- service: j.root-servers.net start-period: '2017-02-20T00:00:00Z' end-period: '2017-02-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6773628993 dns-udp-queries-received-ipv6: 648488311 dns-tcp-queries-received-ipv4: 220204711 dns-tcp-queries-received-ipv6: 13476353 dns-udp-responses-sent-ipv4: 6621905244 dns-udp-responses-sent-ipv6: 651198733 dns-tcp-responses-sent-ipv4: 181632317 dns-tcp-responses-sent-ipv6: 13633555