--- service: a.root-servers.net start-period: '2015-11-04T00:00:00Z' end-period: '2015-11-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3632182400 dns-udp-queries-received-ipv6: 309550722 dns-tcp-queries-received-ipv4: 22052230 dns-tcp-queries-received-ipv6: 2537638 dns-udp-responses-sent-ipv4: 3631148257 dns-udp-responses-sent-ipv6: 308840616 dns-tcp-responses-sent-ipv4: 19427395 dns-tcp-responses-sent-ipv6: 252303