--- service: a.root-servers.net start-period: '2016-10-25T00:00:00Z' end-period: '2016-10-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5033695847 dns-udp-queries-received-ipv6: 416389560 dns-tcp-queries-received-ipv4: 148133788 dns-tcp-queries-received-ipv6: 8559269 dns-udp-responses-sent-ipv4: 5019830898 dns-udp-responses-sent-ipv6: 416351947 dns-tcp-responses-sent-ipv4: 149324967 dns-tcp-responses-sent-ipv6: 8657552