--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5601625876 dns-udp-queries-received-ipv6: 1345178945 dns-tcp-queries-received-ipv4: 304514695 dns-tcp-queries-received-ipv6: 101414007 dns-udp-responses-sent-ipv4: 5523644791 dns-udp-responses-sent-ipv6: 1372771028 dns-tcp-responses-sent-ipv4: 294048436 dns-tcp-responses-sent-ipv6: 101416372