--- service: a.root-servers.net start-period: '2015-11-09T00:00:00Z' end-period: '2015-11-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3589070154 dns-udp-queries-received-ipv6: 314560764 dns-tcp-queries-received-ipv4: 21649785 dns-tcp-queries-received-ipv6: 2235557 dns-udp-responses-sent-ipv4: 3596886182 dns-udp-responses-sent-ipv6: 314093730 dns-tcp-responses-sent-ipv4: 19367017 dns-tcp-responses-sent-ipv6: 260889