--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6849589471 dns-udp-queries-received-ipv6: 923778087 dns-tcp-queries-received-ipv4: 486256880 dns-tcp-queries-received-ipv6: 98040032 dns-udp-responses-sent-ipv4: 6440825407 dns-udp-responses-sent-ipv6: 865575315 dns-tcp-responses-sent-ipv4: 334829123 dns-tcp-responses-sent-ipv6: 68240199