--- service: a.root-servers.net start-period: '2014-06-14T00:00:00Z' end-period: '2014-06-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1548067918 dns-udp-queries-received-ipv6: 105078013 dns-tcp-queries-received-ipv4: 8184493 dns-tcp-queries-received-ipv6: 1276097 dns-udp-responses-sent-ipv4: 1547779644 dns-udp-responses-sent-ipv6: 105082187 dns-tcp-responses-sent-ipv4: 8218096 dns-tcp-responses-sent-ipv6: 494063