--- service: a.root-servers.net start-period: '2016-05-26T00:00:00Z' end-period: '2016-05-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6329626675 dns-udp-queries-received-ipv6: 426720208 dns-tcp-queries-received-ipv4: 77878088 dns-tcp-queries-received-ipv6: 5164289 dns-udp-responses-sent-ipv4: 6329397674 dns-udp-responses-sent-ipv6: 426402717 dns-tcp-responses-sent-ipv4: 65982879 dns-tcp-responses-sent-ipv6: 315613