--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4838732882 dns-udp-queries-received-ipv6: 1152769046 dns-tcp-queries-received-ipv4: 294098205 dns-tcp-queries-received-ipv6: 69635525 dns-udp-responses-sent-ipv4: 4697212652 dns-udp-responses-sent-ipv6: 1150516690 dns-tcp-responses-sent-ipv4: 290111624 dns-tcp-responses-sent-ipv6: 69939507