--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6918167943 dns-udp-queries-received-ipv6: 944813811 dns-tcp-queries-received-ipv4: 256048088 dns-tcp-queries-received-ipv6: 73649370 dns-udp-responses-sent-ipv4: 6753692690 dns-udp-responses-sent-ipv6: 943978654 dns-tcp-responses-sent-ipv4: 240702689 dns-tcp-responses-sent-ipv6: 73704923