--- service: a.root-servers.net start-period: '2015-10-07T00:00:00Z' end-period: '2015-10-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3449734261 dns-udp-queries-received-ipv6: 313503399 dns-tcp-queries-received-ipv4: 22262181 dns-tcp-queries-received-ipv6: 9275260 dns-udp-responses-sent-ipv4: 3449875032 dns-udp-responses-sent-ipv6: 312191099 dns-tcp-responses-sent-ipv4: 18691191 dns-tcp-responses-sent-ipv6: 7332264