--- service: a.root-servers.net start-period: '2016-09-30T00:00:00Z' end-period: '2016-09-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5756729741 dns-udp-queries-received-ipv6: 521896215 dns-tcp-queries-received-ipv4: 136529387 dns-tcp-queries-received-ipv6: 5317442 dns-udp-responses-sent-ipv4: 5702773797 dns-udp-responses-sent-ipv6: 521853306 dns-tcp-responses-sent-ipv4: 138440000 dns-tcp-responses-sent-ipv6: 5399231