--- service: a.root-servers.net start-period: '2014-07-03T00:00:00Z' end-period: '2014-07-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2160999688 dns-udp-queries-received-ipv6: 111499358 dns-tcp-queries-received-ipv4: 12780742 dns-tcp-queries-received-ipv6: 840371 dns-udp-responses-sent-ipv4: 2160822249 dns-udp-responses-sent-ipv6: 111502528 dns-tcp-responses-sent-ipv4: 12704422 dns-tcp-responses-sent-ipv6: 492658