--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6656501047 dns-udp-queries-received-ipv6: 1337555393 dns-tcp-queries-received-ipv4: 602357365 dns-tcp-queries-received-ipv6: 92476741 dns-udp-responses-sent-ipv4: 6101243612 dns-udp-responses-sent-ipv6: 1332756123 dns-tcp-responses-sent-ipv4: 406418036 dns-tcp-responses-sent-ipv6: 93048862