--- service: j.root-servers.net start-period: '2016-03-18T00:00:00Z' end-period: '2016-03-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5980985208 dns-udp-queries-received-ipv6: 697193709 dns-tcp-queries-received-ipv4: 168518985 dns-tcp-queries-received-ipv6: 4072118 dns-udp-responses-sent-ipv4: 5662669071 dns-udp-responses-sent-ipv6: 749393929 dns-tcp-responses-sent-ipv4: 152895383 dns-tcp-responses-sent-ipv6: 309589