--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5627057212 dns-udp-queries-received-ipv6: 1075355600 dns-tcp-queries-received-ipv4: 293424405 dns-tcp-queries-received-ipv6: 92626537 dns-udp-responses-sent-ipv4: 5441851316 dns-udp-responses-sent-ipv6: 1073854801 dns-tcp-responses-sent-ipv4: 276256934 dns-tcp-responses-sent-ipv6: 93052177