--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8381463863 dns-udp-queries-received-ipv6: 1304195761 dns-tcp-queries-received-ipv4: 276307140 dns-tcp-queries-received-ipv6: 96179835 dns-udp-responses-sent-ipv4: 7995201412 dns-udp-responses-sent-ipv6: 1302710392 dns-tcp-responses-sent-ipv4: 265938659 dns-tcp-responses-sent-ipv6: 96939026