--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5833135639 dns-udp-queries-received-ipv6: 786101683 dns-tcp-queries-received-ipv4: 419523908 dns-tcp-queries-received-ipv6: 69222619 dns-udp-responses-sent-ipv4: 5466680983 dns-udp-responses-sent-ipv6: 742060226 dns-tcp-responses-sent-ipv4: 267874933 dns-tcp-responses-sent-ipv6: 45979048