--- version: rssac002v3 service: a.root-servers.net start-period: '2021-05-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5706795120 dns-udp-queries-received-ipv6: 1234279454 dns-tcp-queries-received-ipv4: 324211257 dns-tcp-queries-received-ipv6: 110063463 dns-udp-responses-sent-ipv4: 5634603152 dns-udp-responses-sent-ipv6: 1251725781 dns-tcp-responses-sent-ipv4: 311457501 dns-tcp-responses-sent-ipv6: 110129165