--- service: a.root-servers.net start-period: '2015-10-12T00:00:00Z' end-period: '2015-10-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2792345463 dns-udp-queries-received-ipv6: 139284723 dns-tcp-queries-received-ipv4: 18327968 dns-tcp-queries-received-ipv6: 5219018 dns-udp-responses-sent-ipv4: 2792542463 dns-udp-responses-sent-ipv6: 143707639 dns-tcp-responses-sent-ipv4: 16204504 dns-tcp-responses-sent-ipv6: 4382440