--- service: a.root-servers.net start-period: '2015-10-23T00:00:00Z' end-period: '2015-10-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3316180112 dns-udp-queries-received-ipv6: 304578780 dns-tcp-queries-received-ipv4: 21582283 dns-tcp-queries-received-ipv6: 5279008 dns-udp-responses-sent-ipv4: 3329407075 dns-udp-responses-sent-ipv6: 303905813 dns-tcp-responses-sent-ipv4: 19096969 dns-tcp-responses-sent-ipv6: 2320036