--- service: a.root-servers.net start-period: '2014-06-18T00:00:00Z' end-period: '2014-06-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1637057534 dns-udp-queries-received-ipv6: 92723155 dns-tcp-queries-received-ipv4: 9267906 dns-tcp-queries-received-ipv6: 1342384 dns-udp-responses-sent-ipv4: 1636667767 dns-udp-responses-sent-ipv6: 92712215 dns-tcp-responses-sent-ipv4: 9329366 dns-tcp-responses-sent-ipv6: 468119