--- service: a.root-servers.net start-period: '2014-01-29T00:00:00Z' end-period: '2014-01-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1184987693 dns-udp-queries-received-ipv6: 60448082 dns-tcp-queries-received-ipv4: 6736927 dns-tcp-queries-received-ipv6: 1102180 dns-udp-responses-sent-ipv4: 1183503362 dns-udp-responses-sent-ipv6: 60422342 dns-tcp-responses-sent-ipv4: 6853462 dns-tcp-responses-sent-ipv6: 71