--- service: a.root-servers.net start-period: '2014-09-08T00:00:00Z' end-period: '2014-09-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2021208052 dns-udp-queries-received-ipv6: 148742663 dns-tcp-queries-received-ipv4: 13145049 dns-tcp-queries-received-ipv6: 1707339 dns-udp-responses-sent-ipv4: 2021117614 dns-udp-responses-sent-ipv6: 148730390 dns-tcp-responses-sent-ipv4: 12486871 dns-tcp-responses-sent-ipv6: 1004859