--- service: a.root-servers.net start-period: '2014-01-30T00:00:00Z' end-period: '2014-01-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 853806209 dns-udp-queries-received-ipv6: 46360941 dns-tcp-queries-received-ipv4: 5054530 dns-tcp-queries-received-ipv6: 899260 dns-udp-responses-sent-ipv4: 853128594 dns-udp-responses-sent-ipv6: 46352527 dns-tcp-responses-sent-ipv4: 5063465 dns-tcp-responses-sent-ipv6: 94