--- version: rssac002v3 service: a.root-servers.net start-period: '2021-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5403694788 dns-udp-queries-received-ipv6: 1079394613 dns-tcp-queries-received-ipv4: 282181998 dns-tcp-queries-received-ipv6: 110249503 dns-udp-responses-sent-ipv4: 5252417809 dns-udp-responses-sent-ipv6: 1078046604 dns-tcp-responses-sent-ipv4: 271399264 dns-tcp-responses-sent-ipv6: 110636931