--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6472277417 dns-udp-queries-received-ipv6: 1389912397 dns-tcp-queries-received-ipv4: 178871923 dns-tcp-queries-received-ipv6: 31464337 dns-udp-responses-sent-ipv4: 6317172568 dns-udp-responses-sent-ipv6: 1389235231 dns-tcp-responses-sent-ipv4: 174379960 dns-tcp-responses-sent-ipv6: 32121863