--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5790237312 dns-udp-queries-received-ipv6: 1461578817 dns-tcp-queries-received-ipv4: 328830845 dns-tcp-queries-received-ipv6: 103357724 dns-udp-responses-sent-ipv4: 5712557710 dns-udp-responses-sent-ipv6: 1493384336 dns-tcp-responses-sent-ipv4: 312924307 dns-tcp-responses-sent-ipv6: 103340410