--- version: rssac002v3 service: a.root-servers.net start-period: '2021-07-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5444048974 dns-udp-queries-received-ipv6: 1266191725 dns-tcp-queries-received-ipv4: 293532228 dns-tcp-queries-received-ipv6: 101328666 dns-udp-responses-sent-ipv4: 5294522079 dns-udp-responses-sent-ipv6: 1264518493 dns-tcp-responses-sent-ipv4: 286707491 dns-tcp-responses-sent-ipv6: 101543465