--- service: a.root-servers.net start-period: '2014-04-06T00:00:00Z' end-period: '2014-04-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2143106372 dns-udp-queries-received-ipv6: 81929549 dns-tcp-queries-received-ipv4: 9924947 dns-tcp-queries-received-ipv6: 772345 dns-udp-responses-sent-ipv4: 2142176245 dns-udp-responses-sent-ipv6: 81906820 dns-tcp-responses-sent-ipv4: 9884794 dns-tcp-responses-sent-ipv6: 125