--- service: j.root-servers.net start-period: '2015-04-07T00:00:00Z' end-period: '2015-04-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3614388242 dns-udp-queries-received-ipv6: 332449179 dns-tcp-queries-received-ipv4: 27150105 dns-tcp-queries-received-ipv6: 6900411 dns-udp-responses-sent-ipv4: 3569889215 dns-udp-responses-sent-ipv6: 332360104 dns-tcp-responses-sent-ipv4: 26906040 dns-tcp-responses-sent-ipv6: 4055503