--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4448377884 dns-udp-queries-received-ipv6: 409433502 dns-tcp-queries-received-ipv4: 106211445 dns-tcp-queries-received-ipv6: 13884483 dns-udp-responses-sent-ipv4: 4444373275 dns-udp-responses-sent-ipv6: 409380597 dns-tcp-responses-sent-ipv4: 106932121 dns-tcp-responses-sent-ipv6: 13983695