--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4378194554 dns-udp-queries-received-ipv6: 417208204 dns-tcp-queries-received-ipv4: 109649253 dns-tcp-queries-received-ipv6: 13655329 dns-udp-responses-sent-ipv4: 4374864516 dns-udp-responses-sent-ipv6: 417187603 dns-tcp-responses-sent-ipv4: 109894529 dns-tcp-responses-sent-ipv6: 13759595