--- service: a.root-servers.net start-period: '2014-04-11T00:00:00Z' end-period: '2014-04-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2466763467 dns-udp-queries-received-ipv6: 89766454 dns-tcp-queries-received-ipv4: 11630693 dns-tcp-queries-received-ipv6: 1103174 dns-udp-responses-sent-ipv4: 2466067890 dns-udp-responses-sent-ipv6: 89748632 dns-tcp-responses-sent-ipv4: 11594642 dns-tcp-responses-sent-ipv6: 139