--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4065343194 dns-udp-queries-received-ipv6: 408868738 dns-tcp-queries-received-ipv4: 109051916 dns-tcp-queries-received-ipv6: 13750533 dns-udp-responses-sent-ipv4: 4060472796 dns-udp-responses-sent-ipv6: 408794583 dns-tcp-responses-sent-ipv4: 109833733 dns-tcp-responses-sent-ipv6: 13878967