--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5875832761 dns-udp-queries-received-ipv6: 1271262408 dns-tcp-queries-received-ipv4: 164344637 dns-tcp-queries-received-ipv6: 32638560 dns-udp-responses-sent-ipv4: 5742674508 dns-udp-responses-sent-ipv6: 1270773505 dns-tcp-responses-sent-ipv4: 159038927 dns-tcp-responses-sent-ipv6: 33338800