--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6194626773 dns-udp-queries-received-ipv6: 1363086120 dns-tcp-queries-received-ipv4: 486821895 dns-tcp-queries-received-ipv6: 95258248 dns-udp-responses-sent-ipv4: 5786878494 dns-udp-responses-sent-ipv6: 1355292631 dns-tcp-responses-sent-ipv4: 349368861 dns-tcp-responses-sent-ipv6: 93776007