--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5460014257 dns-udp-queries-received-ipv6: 1132309873 dns-tcp-queries-received-ipv4: 284830177 dns-tcp-queries-received-ipv6: 93479303 dns-udp-responses-sent-ipv4: 5279446840 dns-udp-responses-sent-ipv6: 1130862511 dns-tcp-responses-sent-ipv4: 269739260 dns-tcp-responses-sent-ipv6: 93929103