--- service: j.root-servers.net start-period: '2015-09-16T00:00:00Z' end-period: '2015-09-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5101774583 dns-udp-queries-received-ipv6: 295489628 dns-tcp-queries-received-ipv4: 73606412 dns-tcp-queries-received-ipv6: 24557805 dns-udp-responses-sent-ipv4: 3993333864 dns-udp-responses-sent-ipv6: 294483206 dns-tcp-responses-sent-ipv4: 71762170 dns-tcp-responses-sent-ipv6: 22626825