--- version: rssac002v4 service: a.root-servers.net start-period: '2022-04-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5014475125 dns-udp-queries-received-ipv6: 1443093169 dns-tcp-queries-received-ipv4: 328585195 dns-tcp-queries-received-ipv6: 66284590 dns-udp-responses-sent-ipv4: 5053366443 dns-udp-responses-sent-ipv6: 1446833740 dns-tcp-responses-sent-ipv4: 325345189 dns-tcp-responses-sent-ipv6: 66283305