--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6509590146 dns-udp-queries-received-ipv6: 1281363745 dns-tcp-queries-received-ipv4: 623271966 dns-tcp-queries-received-ipv6: 97233521 dns-udp-responses-sent-ipv4: 5942588785 dns-udp-responses-sent-ipv6: 1277160096 dns-tcp-responses-sent-ipv4: 427929047 dns-tcp-responses-sent-ipv6: 96828084