--- service: a.root-servers.net start-period: '2013-10-04T00:00:00Z' end-period: '2013-10-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1665360832 dns-udp-queries-received-ipv6: 106953793 dns-tcp-queries-received-ipv4: 8776441 dns-tcp-queries-received-ipv6: 1296038 dns-udp-responses-sent-ipv4: 1663716810 dns-udp-responses-sent-ipv6: 107010022 dns-tcp-responses-sent-ipv4: 9255028 dns-tcp-responses-sent-ipv6: 23350