--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7390872211 dns-udp-queries-received-ipv6: 1400920727 dns-tcp-queries-received-ipv4: 301513228 dns-tcp-queries-received-ipv6: 85378956 dns-udp-responses-sent-ipv4: 7093719595 dns-udp-responses-sent-ipv6: 1314369731 dns-tcp-responses-sent-ipv4: 286308467 dns-tcp-responses-sent-ipv6: 84836526