--- service: i.root-servers.net start-period: '2016-01-05T00:00:00Z' end-period: '2016-01-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4708129153 dns-udp-queries-received-ipv6: 375637166 dns-tcp-queries-received-ipv4: 22420815 dns-tcp-queries-received-ipv6: 858943 dns-udp-responses-sent-ipv4: 4644438581 dns-udp-responses-sent-ipv6: 377207283 dns-tcp-responses-sent-ipv4: 22383363 dns-tcp-responses-sent-ipv6: 864817