--- service: a.root-servers.net start-period: '2015-11-08T00:00:00Z' end-period: '2015-11-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3460904530 dns-udp-queries-received-ipv6: 301775732 dns-tcp-queries-received-ipv4: 19269279 dns-tcp-queries-received-ipv6: 1962946 dns-udp-responses-sent-ipv4: 3468798095 dns-udp-responses-sent-ipv6: 300746229 dns-tcp-responses-sent-ipv4: 17093819 dns-tcp-responses-sent-ipv6: 259582