--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6119280712 dns-udp-queries-received-ipv6: 2052203457 dns-tcp-queries-received-ipv4: 338082191 dns-tcp-queries-received-ipv6: 36916329 dns-udp-responses-sent-ipv4: 5932954674 dns-udp-responses-sent-ipv6: 2002197787 dns-tcp-responses-sent-ipv4: 307164759 dns-tcp-responses-sent-ipv6: 36495515