--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5760652847 dns-udp-queries-received-ipv6: 1820874242 dns-tcp-queries-received-ipv4: 428945990 dns-tcp-queries-received-ipv6: 61744713 dns-udp-responses-sent-ipv4: 5384970155 dns-udp-responses-sent-ipv6: 1816569945 dns-tcp-responses-sent-ipv4: 358757960 dns-tcp-responses-sent-ipv6: 61108726