--- service: a.root-servers.net start-period: '2014-05-10T00:00:00Z' end-period: '2014-05-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2225249139 dns-udp-queries-received-ipv6: 97490072 dns-tcp-queries-received-ipv4: 10280682 dns-tcp-queries-received-ipv6: 1225018 dns-udp-responses-sent-ipv4: 2224540306 dns-udp-responses-sent-ipv6: 97459467 dns-tcp-responses-sent-ipv4: 10285922 dns-tcp-responses-sent-ipv6: 118