--- version: rssac002v3 service: a.root-servers.net start-period: '2021-01-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6136525673 dns-udp-queries-received-ipv6: 1228477723 dns-tcp-queries-received-ipv4: 287511408 dns-tcp-queries-received-ipv6: 118854818 dns-udp-responses-sent-ipv4: 5950773834 dns-udp-responses-sent-ipv6: 1226975901 dns-tcp-responses-sent-ipv4: 277044691 dns-tcp-responses-sent-ipv6: 119324557