--- service: j.root-servers.net start-period: '2014-04-18T00:00:00Z' end-period: '2014-04-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2546729436 dns-udp-queries-received-ipv6: 201707752 dns-tcp-queries-received-ipv4: 21536188 dns-tcp-queries-received-ipv6: 4685960 dns-udp-responses-sent-ipv4: 2538799239 dns-udp-responses-sent-ipv6: 201527548 dns-tcp-responses-sent-ipv4: 19742349 dns-tcp-responses-sent-ipv6: 181