--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5747298723 dns-udp-queries-received-ipv6: 1122984476 dns-tcp-queries-received-ipv4: 545504079 dns-tcp-queries-received-ipv6: 87708278 dns-udp-responses-sent-ipv4: 5263073080 dns-udp-responses-sent-ipv6: 1118474203 dns-tcp-responses-sent-ipv4: 372362479 dns-tcp-responses-sent-ipv6: 87944757