--- service: a.root-servers.net start-period: '2014-07-04T00:00:00Z' end-period: '2014-07-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1947517352 dns-udp-queries-received-ipv6: 107119213 dns-tcp-queries-received-ipv4: 12648334 dns-tcp-queries-received-ipv6: 808172 dns-udp-responses-sent-ipv4: 1947326296 dns-udp-responses-sent-ipv6: 107113346 dns-tcp-responses-sent-ipv4: 12644277 dns-tcp-responses-sent-ipv6: 499695