--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6610809751 dns-udp-queries-received-ipv6: 1263528052 dns-tcp-queries-received-ipv4: 187037681 dns-tcp-queries-received-ipv6: 34183452 dns-udp-responses-sent-ipv4: 6420329571 dns-udp-responses-sent-ipv6: 1259031159 dns-tcp-responses-sent-ipv4: 182365810 dns-tcp-responses-sent-ipv6: 34905854