--- service: j.root-servers.net start-period: '2015-04-29T00:00:00Z' end-period: '2015-04-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3224575848 dns-udp-queries-received-ipv6: 207112339 dns-tcp-queries-received-ipv4: 23906422 dns-tcp-queries-received-ipv6: 5018419 dns-udp-responses-sent-ipv4: 3217934814 dns-udp-responses-sent-ipv6: 206988706 dns-tcp-responses-sent-ipv4: 23476824 dns-tcp-responses-sent-ipv6: 4202601