--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5169270577 dns-udp-queries-received-ipv6: 1309401630 dns-tcp-queries-received-ipv4: 303408198 dns-tcp-queries-received-ipv6: 70772650 dns-udp-responses-sent-ipv4: 5012449290 dns-udp-responses-sent-ipv6: 1306747437 dns-tcp-responses-sent-ipv4: 298897437 dns-tcp-responses-sent-ipv6: 71120961