--- service: a.root-servers.net start-period: '2014-01-06T00:00:00Z' end-period: '2014-01-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1545137183 dns-udp-queries-received-ipv6: 55598221 dns-tcp-queries-received-ipv4: 7420521 dns-tcp-queries-received-ipv6: 756772 dns-udp-responses-sent-ipv4: 1545173426 dns-udp-responses-sent-ipv6: 55604333 dns-tcp-responses-sent-ipv4: 7346124 dns-tcp-responses-sent-ipv6: 63