--- service: a.root-servers.net start-period: '2016-06-07T00:00:00Z' end-period: '2016-06-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5758384609 dns-udp-queries-received-ipv6: 418092235 dns-tcp-queries-received-ipv4: 81619701 dns-tcp-queries-received-ipv6: 5923901 dns-udp-responses-sent-ipv4: 5757762318 dns-udp-responses-sent-ipv6: 417840520 dns-tcp-responses-sent-ipv4: 69064859 dns-tcp-responses-sent-ipv6: 318987