--- version: rssac002v3 service: a.root-servers.net start-period: '2018-07-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4112149795 dns-udp-queries-received-ipv6: 504108252 dns-tcp-queries-received-ipv4: 111067909 dns-tcp-queries-received-ipv6: 18947992 dns-udp-responses-sent-ipv4: 4020211466 dns-udp-responses-sent-ipv6: 503778125 dns-tcp-responses-sent-ipv4: 107707972 dns-tcp-responses-sent-ipv6: 18842808