--- service: a.root-servers.net start-period: '2014-08-19T00:00:00Z' end-period: '2014-08-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2088172191 dns-udp-queries-received-ipv6: 144383175 dns-tcp-queries-received-ipv4: 22289361 dns-tcp-queries-received-ipv6: 1939717 dns-udp-responses-sent-ipv4: 2088066237 dns-udp-responses-sent-ipv6: 144328647 dns-tcp-responses-sent-ipv4: 21605439 dns-tcp-responses-sent-ipv6: 950182