--- service: a.root-servers.net start-period: '2016-02-10T00:00:00Z' end-period: '2016-02-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5072576084 dns-udp-queries-received-ipv6: 355525908 dns-tcp-queries-received-ipv4: 62966954 dns-tcp-queries-received-ipv6: 2098944 dns-udp-responses-sent-ipv4: 5062264116 dns-udp-responses-sent-ipv6: 356958544 dns-tcp-responses-sent-ipv4: 54000926 dns-tcp-responses-sent-ipv6: 280270