--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7940156995 dns-udp-queries-received-ipv6: 1213092937 dns-tcp-queries-received-ipv4: 604463283 dns-tcp-queries-received-ipv6: 83094191 dns-udp-responses-sent-ipv4: 7295259535 dns-udp-responses-sent-ipv6: 1164335967 dns-tcp-responses-sent-ipv4: 430789406 dns-tcp-responses-sent-ipv6: 59689125