--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5486868553 dns-udp-queries-received-ipv6: 1350096154 dns-tcp-queries-received-ipv4: 294358523 dns-tcp-queries-received-ipv6: 102846316 dns-udp-responses-sent-ipv4: 5406990691 dns-udp-responses-sent-ipv6: 1376548281 dns-tcp-responses-sent-ipv4: 284636855 dns-tcp-responses-sent-ipv6: 102830109