--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6578483878 dns-udp-queries-received-ipv6: 1367276914 dns-tcp-queries-received-ipv4: 179451662 dns-tcp-queries-received-ipv6: 33555229 dns-udp-responses-sent-ipv4: 6420468750 dns-udp-responses-sent-ipv6: 1366118700 dns-tcp-responses-sent-ipv4: 174525473 dns-tcp-responses-sent-ipv6: 34209559