--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7338003907 dns-udp-queries-received-ipv6: 993474633 dns-tcp-queries-received-ipv4: 232007551 dns-tcp-queries-received-ipv6: 76116647 dns-udp-responses-sent-ipv4: 7128905863 dns-udp-responses-sent-ipv6: 986134093 dns-tcp-responses-sent-ipv4: 216493851 dns-tcp-responses-sent-ipv6: 76281977