--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6151672783 dns-udp-queries-received-ipv6: 1169869634 dns-tcp-queries-received-ipv4: 216785560 dns-tcp-queries-received-ipv6: 97001783 dns-udp-responses-sent-ipv4: 5985765700 dns-udp-responses-sent-ipv6: 1162829506 dns-tcp-responses-sent-ipv4: 213749715 dns-tcp-responses-sent-ipv6: 97248831