--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5298542154 dns-udp-queries-received-ipv6: 1310387763 dns-tcp-queries-received-ipv4: 299145513 dns-tcp-queries-received-ipv6: 77658758 dns-udp-responses-sent-ipv4: 5310259685 dns-udp-responses-sent-ipv6: 1323040101 dns-tcp-responses-sent-ipv4: 295922593 dns-tcp-responses-sent-ipv6: 77511337