--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5584694458 dns-udp-queries-received-ipv6: 1381972200 dns-tcp-queries-received-ipv4: 312008025 dns-tcp-queries-received-ipv6: 103725759 dns-udp-responses-sent-ipv4: 5505586513 dns-udp-responses-sent-ipv6: 1408481285 dns-tcp-responses-sent-ipv4: 301704464 dns-tcp-responses-sent-ipv6: 103717555