--- service: j.root-servers.net start-period: '2014-12-19T00:00:00Z' end-period: '2014-12-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3285761296 dns-udp-queries-received-ipv6: 236112940 dns-tcp-queries-received-ipv4: 30560509 dns-tcp-queries-received-ipv6: 5490309 dns-udp-responses-sent-ipv4: 3289039709 dns-udp-responses-sent-ipv6: 236067197 dns-tcp-responses-sent-ipv4: 30640682 dns-tcp-responses-sent-ipv6: 4705799