--- service: a.root-servers.net start-period: '2017-03-05T00:00:00Z' end-period: '2017-03-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4386953429 dns-udp-queries-received-ipv6: 483306516 dns-tcp-queries-received-ipv4: 179945834 dns-tcp-queries-received-ipv6: 7957161 dns-udp-responses-sent-ipv4: 4383892538 dns-udp-responses-sent-ipv6: 483200660 dns-tcp-responses-sent-ipv4: 180520142 dns-tcp-responses-sent-ipv6: 8026711