--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4726426041 dns-udp-queries-received-ipv6: 1205554402 dns-tcp-queries-received-ipv4: 284207153 dns-tcp-queries-received-ipv6: 78569697 dns-udp-responses-sent-ipv4: 4711783277 dns-udp-responses-sent-ipv6: 1212773055 dns-tcp-responses-sent-ipv4: 281689799 dns-tcp-responses-sent-ipv6: 78442697