--- version: rssac002v3 service: a.root-servers.net start-period: '2021-07-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5683037075 dns-udp-queries-received-ipv6: 1513013556 dns-tcp-queries-received-ipv4: 316085862 dns-tcp-queries-received-ipv6: 142481447 dns-udp-responses-sent-ipv4: 5633904620 dns-udp-responses-sent-ipv6: 1535306425 dns-tcp-responses-sent-ipv4: 307361757 dns-tcp-responses-sent-ipv6: 142578545