--- version: rssac002v4 service: j.root-servers.net start-period: '2022-01-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5991740016 dns-udp-queries-received-ipv6: 1346725536 dns-tcp-queries-received-ipv4: 386232508 dns-tcp-queries-received-ipv6: 52283861 dns-udp-responses-sent-ipv4: 5510413491 dns-udp-responses-sent-ipv6: 1316765548 dns-tcp-responses-sent-ipv4: 276002563 dns-tcp-responses-sent-ipv6: 51516537