--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5886954354 dns-udp-queries-received-ipv6: 1251821637 dns-tcp-queries-received-ipv4: 522217026 dns-tcp-queries-received-ipv6: 111398810 dns-udp-responses-sent-ipv4: 5437137191 dns-udp-responses-sent-ipv6: 1235606219 dns-tcp-responses-sent-ipv4: 376425802 dns-tcp-responses-sent-ipv6: 108539096