--- service: a.root-servers.net start-period: '2013-10-22T00:00:00Z' end-period: '2013-10-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1624754610 dns-udp-queries-received-ipv6: 93870704 dns-tcp-queries-received-ipv4: 7843368 dns-tcp-queries-received-ipv6: 1546749 dns-udp-responses-sent-ipv4: 1622375641 dns-udp-responses-sent-ipv6: 93877796 dns-tcp-responses-sent-ipv4: 8418697 dns-tcp-responses-sent-ipv6: 285438