--- service: j.root-servers.net start-period: '2016-01-28T00:00:00Z' end-period: '2016-01-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4485893368 dns-udp-queries-received-ipv6: 580558523 dns-tcp-queries-received-ipv4: 73991651 dns-tcp-queries-received-ipv6: 1901513 dns-udp-responses-sent-ipv4: 4244291738 dns-udp-responses-sent-ipv6: 583050288 dns-tcp-responses-sent-ipv4: 62552476 dns-tcp-responses-sent-ipv6: 330593