--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5045750941 dns-udp-queries-received-ipv6: 1321499252 dns-tcp-queries-received-ipv4: 268278205 dns-tcp-queries-received-ipv6: 59740631 dns-udp-responses-sent-ipv4: 5075138999 dns-udp-responses-sent-ipv6: 1324475333 dns-tcp-responses-sent-ipv4: 266212932 dns-tcp-responses-sent-ipv6: 59825831