--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9136170494 dns-udp-queries-received-ipv6: 1653601915 dns-tcp-queries-received-ipv4: 313600171 dns-tcp-queries-received-ipv6: 145035635 dns-udp-responses-sent-ipv4: 8867543432 dns-udp-responses-sent-ipv6: 1638720548 dns-tcp-responses-sent-ipv4: 307437426 dns-tcp-responses-sent-ipv6: 143248830