--- service: a.root-servers.net start-period: '2015-02-06T00:00:00Z' end-period: '2015-02-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2882877658 dns-udp-queries-received-ipv6: 215047390 dns-tcp-queries-received-ipv4: 17257478 dns-tcp-queries-received-ipv6: 1573082 dns-udp-responses-sent-ipv4: 2882402566 dns-udp-responses-sent-ipv6: 214994558 dns-tcp-responses-sent-ipv4: 14928131 dns-tcp-responses-sent-ipv6: 839876