--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5104138746 dns-udp-queries-received-ipv6: 1261458551 dns-tcp-queries-received-ipv4: 262762550 dns-tcp-queries-received-ipv6: 57583760 dns-udp-responses-sent-ipv4: 5381735818 dns-udp-responses-sent-ipv6: 1310848324 dns-tcp-responses-sent-ipv4: 259376910 dns-tcp-responses-sent-ipv6: 57464307