--- service: a.root-servers.net start-period: '2014-12-05T00:00:00Z' end-period: '2014-12-05T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2843214659 dns-udp-queries-received-ipv6: 185960062 dns-tcp-queries-received-ipv4: 17642186 dns-tcp-queries-received-ipv6: 2297855 dns-udp-responses-sent-ipv4: 2842816056 dns-udp-responses-sent-ipv6: 185895364 dns-tcp-responses-sent-ipv4: 16375662 dns-tcp-responses-sent-ipv6: 1562362