--- service: a.root-servers.net start-period: '2014-09-14T00:00:00Z' end-period: '2014-09-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1723628793 dns-udp-queries-received-ipv6: 132322444 dns-tcp-queries-received-ipv4: 11325931 dns-tcp-queries-received-ipv6: 1479330 dns-udp-responses-sent-ipv4: 1727453035 dns-udp-responses-sent-ipv6: 132460552 dns-tcp-responses-sent-ipv4: 10818096 dns-tcp-responses-sent-ipv6: 1047505