--- service: j.root-servers.net start-period: '2015-08-19T00:00:00Z' end-period: '2015-08-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4983117022 dns-udp-queries-received-ipv6: 309359420 dns-tcp-queries-received-ipv4: 70211415 dns-tcp-queries-received-ipv6: 24241284 dns-udp-responses-sent-ipv4: 3924624245 dns-udp-responses-sent-ipv6: 310248985 dns-tcp-responses-sent-ipv4: 69833429 dns-tcp-responses-sent-ipv6: 22301379