--- version: rssac002v4 service: a.root-servers.net start-period: '2022-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5471130223 dns-udp-queries-received-ipv6: 1641563185 dns-tcp-queries-received-ipv4: 351766975 dns-tcp-queries-received-ipv6: 58377238 dns-udp-responses-sent-ipv4: 5205854183 dns-udp-responses-sent-ipv6: 1640078695 dns-tcp-responses-sent-ipv4: 290681049 dns-tcp-responses-sent-ipv6: 58383550