--- service: j.root-servers.net start-period: '2014-01-01T00:00:00Z' end-period: '2014-01-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2376171906 dns-udp-queries-received-ipv6: 153491105 dns-tcp-queries-received-ipv4: 21815245 dns-tcp-queries-received-ipv6: 2527614 dns-udp-responses-sent-ipv4: 2369491253 dns-udp-responses-sent-ipv6: 153449252 dns-tcp-responses-sent-ipv4: 20134056 dns-tcp-responses-sent-ipv6: 171