--- service: j.root-servers.net start-period: '2015-06-07T00:00:00Z' end-period: '2015-06-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2718171554 dns-udp-queries-received-ipv6: 184967440 dns-tcp-queries-received-ipv4: 25077833 dns-tcp-queries-received-ipv6: 10522023 dns-udp-responses-sent-ipv4: 2657706373 dns-udp-responses-sent-ipv6: 184936889 dns-tcp-responses-sent-ipv4: 24388170 dns-tcp-responses-sent-ipv6: 8929415