--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5734919168 dns-udp-queries-received-ipv6: 1287856155 dns-tcp-queries-received-ipv4: 158184274 dns-tcp-queries-received-ipv6: 31143516 dns-udp-responses-sent-ipv4: 5601442343 dns-udp-responses-sent-ipv6: 1286879244 dns-tcp-responses-sent-ipv4: 153269333 dns-tcp-responses-sent-ipv6: 31713118