--- service: j.root-servers.net start-period: '2015-04-22T00:00:00Z' end-period: '2015-04-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3290243565 dns-udp-queries-received-ipv6: 214173847 dns-tcp-queries-received-ipv4: 24210354 dns-tcp-queries-received-ipv6: 5174005 dns-udp-responses-sent-ipv4: 3272706738 dns-udp-responses-sent-ipv6: 214034504 dns-tcp-responses-sent-ipv4: 23732979 dns-tcp-responses-sent-ipv6: 4262840