--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6479474652 dns-udp-queries-received-ipv6: 841115714 dns-tcp-queries-received-ipv4: 440659796 dns-tcp-queries-received-ipv6: 77872762 dns-udp-responses-sent-ipv4: 6090774304 dns-udp-responses-sent-ipv6: 799016125 dns-tcp-responses-sent-ipv4: 289835571 dns-tcp-responses-sent-ipv6: 56918422