--- service: d.root-servers.net start-period: '2015-11-16T00:00:00Z' end-period: '2015-11-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4112345280 dns-udp-queries-received-ipv6: 461313368 dns-tcp-queries-received-ipv4: 17995656 dns-tcp-queries-received-ipv6: 522220 dns-udp-responses-sent-ipv4: 4096929304 dns-udp-responses-sent-ipv6: 461018577 dns-tcp-responses-sent-ipv4: 17903139 dns-tcp-responses-sent-ipv6: 521868