--- service: a.root-servers.net start-period: '2014-08-28T00:00:00Z' end-period: '2014-08-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1920093476 dns-udp-queries-received-ipv6: 150642551 dns-tcp-queries-received-ipv4: 12929700 dns-tcp-queries-received-ipv6: 2101459 dns-udp-responses-sent-ipv4: 1920211708 dns-udp-responses-sent-ipv6: 150617470 dns-tcp-responses-sent-ipv4: 11983717 dns-tcp-responses-sent-ipv6: 950872