--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5631002815 dns-udp-queries-received-ipv6: 1431880683 dns-tcp-queries-received-ipv4: 300748993 dns-tcp-queries-received-ipv6: 111985761 dns-udp-responses-sent-ipv4: 5559846730 dns-udp-responses-sent-ipv6: 1468173132 dns-tcp-responses-sent-ipv4: 290933302 dns-tcp-responses-sent-ipv6: 111951571