--- service: j.root-servers.net start-period: '2017-01-11T00:00:00Z' end-period: '2017-01-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6576314189 dns-udp-queries-received-ipv6: 626717981 dns-tcp-queries-received-ipv4: 194558219 dns-tcp-queries-received-ipv6: 15577164 dns-udp-responses-sent-ipv4: 6333728423 dns-udp-responses-sent-ipv6: 631183333 dns-tcp-responses-sent-ipv4: 181921395 dns-tcp-responses-sent-ipv6: 15679360