--- service: j.root-servers.net start-period: '2015-04-16T00:00:00Z' end-period: '2015-04-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3381548710 dns-udp-queries-received-ipv6: 196514058 dns-tcp-queries-received-ipv4: 24989620 dns-tcp-queries-received-ipv6: 5081270 dns-udp-responses-sent-ipv4: 3313950273 dns-udp-responses-sent-ipv6: 196520365 dns-tcp-responses-sent-ipv4: 24470457 dns-tcp-responses-sent-ipv6: 4232856