--- version: rssac002v3 service: j.root-servers.net start-period: '2020-12-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6208346596 dns-udp-queries-received-ipv6: 1384574325 dns-tcp-queries-received-ipv4: 569462081 dns-tcp-queries-received-ipv6: 139296491 dns-udp-responses-sent-ipv4: 5709600304 dns-udp-responses-sent-ipv6: 1361550953 dns-tcp-responses-sent-ipv4: 409525727 dns-tcp-responses-sent-ipv6: 137376168