--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6188002043 dns-udp-queries-received-ipv6: 1317618439 dns-tcp-queries-received-ipv4: 291228125 dns-tcp-queries-received-ipv6: 127665810 dns-udp-responses-sent-ipv4: 5788073236 dns-udp-responses-sent-ipv6: 1314888514 dns-tcp-responses-sent-ipv4: 244519327 dns-tcp-responses-sent-ipv6: 127862511