--- service: a.root-servers.net start-period: '2016-10-04T00:00:00Z' end-period: '2016-10-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4578994256 dns-udp-queries-received-ipv6: 417661658 dns-tcp-queries-received-ipv4: 172081770 dns-tcp-queries-received-ipv6: 9041254 dns-udp-responses-sent-ipv4: 4559145282 dns-udp-responses-sent-ipv6: 413765829 dns-tcp-responses-sent-ipv4: 172337008 dns-tcp-responses-sent-ipv6: 8229122