--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6028867265 dns-udp-queries-received-ipv6: 1271086124 dns-tcp-queries-received-ipv4: 605210515 dns-tcp-queries-received-ipv6: 106417240 dns-udp-responses-sent-ipv4: 5548316737 dns-udp-responses-sent-ipv6: 1268208666 dns-tcp-responses-sent-ipv4: 431239702 dns-tcp-responses-sent-ipv6: 106445441