--- service: j.root-servers.net start-period: '2016-04-19T00:00:00Z' end-period: '2016-04-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5704159146 dns-udp-queries-received-ipv6: 703677977 dns-tcp-queries-received-ipv4: 169894871 dns-tcp-queries-received-ipv6: 3126897 dns-udp-responses-sent-ipv4: 5378599051 dns-udp-responses-sent-ipv6: 703254399 dns-tcp-responses-sent-ipv4: 148306862 dns-tcp-responses-sent-ipv6: 317991