--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5152827050 dns-udp-queries-received-ipv6: 1213506671 dns-tcp-queries-received-ipv4: 290441292 dns-tcp-queries-received-ipv6: 69707018 dns-udp-responses-sent-ipv4: 5133814853 dns-udp-responses-sent-ipv6: 1224224973 dns-tcp-responses-sent-ipv4: 285059668 dns-tcp-responses-sent-ipv6: 70211173