--- service: a.root-servers.net start-period: '2017-02-03T00:00:00Z' end-period: '2017-02-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4548726572 dns-udp-queries-received-ipv6: 497548653 dns-tcp-queries-received-ipv4: 143153536 dns-tcp-queries-received-ipv6: 8971636 dns-udp-responses-sent-ipv4: 4544326789 dns-udp-responses-sent-ipv6: 497386710 dns-tcp-responses-sent-ipv4: 143742333 dns-tcp-responses-sent-ipv6: 8977985