--- service: j.root-servers.net start-period: '2015-02-22T00:00:00Z' end-period: '2015-02-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3005075585 dns-udp-queries-received-ipv6: 303552882 dns-tcp-queries-received-ipv4: 24886277 dns-tcp-queries-received-ipv6: 4087423 dns-udp-responses-sent-ipv4: 2999730693 dns-udp-responses-sent-ipv6: 303600009 dns-tcp-responses-sent-ipv4: 24543974 dns-tcp-responses-sent-ipv6: 3507255