--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7759385907 dns-udp-queries-received-ipv6: 1158235053 dns-tcp-queries-received-ipv4: 527113246 dns-tcp-queries-received-ipv6: 168394185 dns-udp-responses-sent-ipv4: 7232368448 dns-udp-responses-sent-ipv6: 1031486962 dns-tcp-responses-sent-ipv4: 401234187 dns-tcp-responses-sent-ipv6: 104178891