--- service: a.root-servers.net start-period: '2014-06-11T00:00:00Z' end-period: '2014-06-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1792918943 dns-udp-queries-received-ipv6: 116276439 dns-tcp-queries-received-ipv4: 9688857 dns-tcp-queries-received-ipv6: 1249278 dns-udp-responses-sent-ipv4: 1792353219 dns-udp-responses-sent-ipv6: 116302272 dns-tcp-responses-sent-ipv4: 9778438 dns-tcp-responses-sent-ipv6: 454251