--- service: a.root-servers.net start-period: '2017-03-02T00:00:00Z' end-period: '2017-03-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4933857469 dns-udp-queries-received-ipv6: 497935939 dns-tcp-queries-received-ipv4: 171433514 dns-tcp-queries-received-ipv6: 9908184 dns-udp-responses-sent-ipv4: 4931185624 dns-udp-responses-sent-ipv6: 497876306 dns-tcp-responses-sent-ipv4: 172002139 dns-tcp-responses-sent-ipv6: 9984149