--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6487041676 dns-udp-queries-received-ipv6: 1337854825 dns-tcp-queries-received-ipv4: 185013364 dns-tcp-queries-received-ipv6: 31514268 dns-udp-responses-sent-ipv4: 6332190431 dns-udp-responses-sent-ipv6: 1337177898 dns-tcp-responses-sent-ipv4: 180442963 dns-tcp-responses-sent-ipv6: 32209763