--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5278224989 dns-udp-queries-received-ipv6: 534986696 dns-tcp-queries-received-ipv4: 300979831 dns-tcp-queries-received-ipv6: 17690036 dns-udp-responses-sent-ipv4: 5054237893 dns-udp-responses-sent-ipv6: 468342844 dns-tcp-responses-sent-ipv4: 231532124 dns-tcp-responses-sent-ipv6: 17812177