--- service: a.root-servers.net start-period: '2013-10-29T00:00:00Z' end-period: '2013-10-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1603646940 dns-udp-queries-received-ipv6: 86234619 dns-tcp-queries-received-ipv4: 7877016 dns-tcp-queries-received-ipv6: 1523035 dns-udp-responses-sent-ipv4: 1603075178 dns-udp-responses-sent-ipv6: 86247561 dns-tcp-responses-sent-ipv4: 8489175 dns-tcp-responses-sent-ipv6: 19071