--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5559071971 dns-udp-queries-received-ipv6: 1108052215 dns-tcp-queries-received-ipv4: 280092227 dns-tcp-queries-received-ipv6: 93756153 dns-udp-responses-sent-ipv4: 5377908209 dns-udp-responses-sent-ipv6: 1106518127 dns-tcp-responses-sent-ipv4: 266638620 dns-tcp-responses-sent-ipv6: 94179093