--- service: i.root-servers.net start-period: '2014-05-28T00:00:00Z' end-period: '2014-05-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2919006043 dns-udp-queries-received-ipv6: 253745287 dns-tcp-queries-received-ipv4: 6760302 dns-tcp-queries-received-ipv6: 242464 dns-udp-responses-sent-ipv4: 2859314702 dns-udp-responses-sent-ipv6: 253336702 dns-tcp-responses-sent-ipv4: 6953871 dns-tcp-responses-sent-ipv6: 245485