--- service: a.root-servers.net start-period: '2015-11-01T00:00:00Z' end-period: '2015-11-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3027324372 dns-udp-queries-received-ipv6: 295604183 dns-tcp-queries-received-ipv4: 21033649 dns-tcp-queries-received-ipv6: 4866878 dns-udp-responses-sent-ipv4: 3037120565 dns-udp-responses-sent-ipv6: 294165345 dns-tcp-responses-sent-ipv4: 18505964 dns-tcp-responses-sent-ipv6: 2073107