--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7732654190 dns-udp-queries-received-ipv6: 1484255908 dns-tcp-queries-received-ipv4: 324461018 dns-tcp-queries-received-ipv6: 104518137 dns-udp-responses-sent-ipv4: 7525814336 dns-udp-responses-sent-ipv6: 1482697561 dns-tcp-responses-sent-ipv4: 319023334 dns-tcp-responses-sent-ipv6: 104904591