--- version: rssac002v3 service: a.root-servers.net start-period: '2019-07-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6369019413 dns-udp-queries-received-ipv6: 1242380727 dns-tcp-queries-received-ipv4: 176771555 dns-tcp-queries-received-ipv6: 33254157 dns-udp-responses-sent-ipv4: 6221182655 dns-udp-responses-sent-ipv6: 1241524088 dns-tcp-responses-sent-ipv4: 172201183 dns-tcp-responses-sent-ipv6: 34099769