--- service: a.root-servers.net start-period: '2014-01-11T00:00:00Z' end-period: '2014-01-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1331931233 dns-udp-queries-received-ipv6: 45793730 dns-tcp-queries-received-ipv4: 6678633 dns-tcp-queries-received-ipv6: 827802 dns-udp-responses-sent-ipv4: 1327994192 dns-udp-responses-sent-ipv6: 45792342 dns-tcp-responses-sent-ipv4: 6630462 dns-tcp-responses-sent-ipv6: 61