--- service: a.root-servers.net start-period: '2016-10-22T00:00:00Z' end-period: '2016-10-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4456076731 dns-udp-queries-received-ipv6: 408278791 dns-tcp-queries-received-ipv4: 129703356 dns-tcp-queries-received-ipv6: 7811054 dns-udp-responses-sent-ipv4: 4432959949 dns-udp-responses-sent-ipv6: 407489797 dns-tcp-responses-sent-ipv4: 130263296 dns-tcp-responses-sent-ipv6: 7800647