--- service: j.root-servers.net start-period: '2015-04-25T00:00:00Z' end-period: '2015-04-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2832847611 dns-udp-queries-received-ipv6: 198943062 dns-tcp-queries-received-ipv4: 22796590 dns-tcp-queries-received-ipv6: 5007470 dns-udp-responses-sent-ipv4: 2826301335 dns-udp-responses-sent-ipv6: 198582895 dns-tcp-responses-sent-ipv4: 22421205 dns-tcp-responses-sent-ipv6: 5590146