--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6974605923 dns-udp-queries-received-ipv6: 1190303228 dns-tcp-queries-received-ipv4: 320582946 dns-tcp-queries-received-ipv6: 164580092 dns-udp-responses-sent-ipv4: 6680602935 dns-udp-responses-sent-ipv6: 1071427009 dns-tcp-responses-sent-ipv4: 289040003 dns-tcp-responses-sent-ipv6: 103215993