--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4543860897 dns-udp-queries-received-ipv6: 1156734514 dns-tcp-queries-received-ipv4: 309528210 dns-tcp-queries-received-ipv6: 71398542 dns-udp-responses-sent-ipv4: 4407936827 dns-udp-responses-sent-ipv6: 1154852983 dns-tcp-responses-sent-ipv4: 305567541 dns-tcp-responses-sent-ipv6: 71790321