--- service: a.root-servers.net start-period: '2016-10-19T00:00:00Z' end-period: '2016-10-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4158140983 dns-udp-queries-received-ipv6: 362413230 dns-tcp-queries-received-ipv4: 138839197 dns-tcp-queries-received-ipv6: 7090174 dns-udp-responses-sent-ipv4: 4138847626 dns-udp-responses-sent-ipv6: 361787866 dns-tcp-responses-sent-ipv4: 139676194 dns-tcp-responses-sent-ipv6: 7019338