--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6260223206 dns-udp-queries-received-ipv6: 1267409862 dns-tcp-queries-received-ipv4: 548504040 dns-tcp-queries-received-ipv6: 93244336 dns-udp-responses-sent-ipv4: 5783843727 dns-udp-responses-sent-ipv6: 1262604277 dns-tcp-responses-sent-ipv4: 385191796 dns-tcp-responses-sent-ipv6: 92930077