--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6215269051 dns-udp-queries-received-ipv6: 1939200663 dns-tcp-queries-received-ipv4: 310036097 dns-tcp-queries-received-ipv6: 88183640 dns-udp-responses-sent-ipv4: 6032202261 dns-udp-responses-sent-ipv6: 1936051012 dns-tcp-responses-sent-ipv4: 285243329 dns-tcp-responses-sent-ipv6: 87647176