--- service: j.root-servers.net start-period: '2015-04-10T00:00:00Z' end-period: '2015-04-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3127779937 dns-udp-queries-received-ipv6: 328377481 dns-tcp-queries-received-ipv4: 23137965 dns-tcp-queries-received-ipv6: 7122342 dns-udp-responses-sent-ipv4: 3071980673 dns-udp-responses-sent-ipv6: 328392463 dns-tcp-responses-sent-ipv4: 22596385 dns-tcp-responses-sent-ipv6: 4170397