--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7070645707 dns-udp-queries-received-ipv6: 1461660549 dns-tcp-queries-received-ipv4: 650837654 dns-tcp-queries-received-ipv6: 108712905 dns-udp-responses-sent-ipv4: 6506161079 dns-udp-responses-sent-ipv6: 1449620311 dns-tcp-responses-sent-ipv4: 450660115 dns-tcp-responses-sent-ipv6: 104745706