--- service: a.root-servers.net start-period: '2014-12-07T00:00:00Z' end-period: '2014-12-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2288591347 dns-udp-queries-received-ipv6: 169696432 dns-tcp-queries-received-ipv4: 15788796 dns-tcp-queries-received-ipv6: 2027164 dns-udp-responses-sent-ipv4: 2287882534 dns-udp-responses-sent-ipv6: 169648408 dns-tcp-responses-sent-ipv4: 14757922 dns-tcp-responses-sent-ipv6: 1369699