--- service: a.root-servers.net start-period: '2015-02-24T00:00:00Z' end-period: '2015-02-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2782819616 dns-udp-queries-received-ipv6: 227561418 dns-tcp-queries-received-ipv4: 17790021 dns-tcp-queries-received-ipv6: 2378226 dns-udp-responses-sent-ipv4: 2775715376 dns-udp-responses-sent-ipv6: 227145755 dns-tcp-responses-sent-ipv4: 15385122 dns-tcp-responses-sent-ipv6: 1274580