--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5437484711 dns-udp-queries-received-ipv6: 1442749127 dns-tcp-queries-received-ipv4: 298019055 dns-tcp-queries-received-ipv6: 106830004 dns-udp-responses-sent-ipv4: 5401227465 dns-udp-responses-sent-ipv6: 1480144561 dns-tcp-responses-sent-ipv4: 291622330 dns-tcp-responses-sent-ipv6: 107076883