--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5437076130 dns-udp-queries-received-ipv6: 1420820333 dns-tcp-queries-received-ipv4: 292826854 dns-tcp-queries-received-ipv6: 61898598 dns-udp-responses-sent-ipv4: 5644723311 dns-udp-responses-sent-ipv6: 1448225283 dns-tcp-responses-sent-ipv4: 289678103 dns-tcp-responses-sent-ipv6: 61908656