--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6119731003 dns-udp-queries-received-ipv6: 1525208406 dns-tcp-queries-received-ipv4: 547635879 dns-tcp-queries-received-ipv6: 220190446 dns-udp-responses-sent-ipv4: 5648711661 dns-udp-responses-sent-ipv6: 1505174656 dns-tcp-responses-sent-ipv4: 388278922 dns-tcp-responses-sent-ipv6: 248139020