--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5479920738 dns-udp-queries-received-ipv6: 1593771704 dns-tcp-queries-received-ipv4: 328114573 dns-tcp-queries-received-ipv6: 266537917 dns-udp-responses-sent-ipv4: 5401809086 dns-udp-responses-sent-ipv6: 1627324311 dns-tcp-responses-sent-ipv4: 318683211 dns-tcp-responses-sent-ipv6: 280605322