--- version: rssac002v3 service: a.root-servers.net start-period: '2019-10-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7378581016 dns-udp-queries-received-ipv6: 1406371684 dns-tcp-queries-received-ipv4: 199617752 dns-tcp-queries-received-ipv6: 44554463 dns-udp-responses-sent-ipv4: 7035331201 dns-udp-responses-sent-ipv6: 1405355278 dns-tcp-responses-sent-ipv4: 195716096 dns-tcp-responses-sent-ipv6: 44788248