--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6487337561 dns-udp-queries-received-ipv6: 1107404551 dns-tcp-queries-received-ipv4: 200425464 dns-tcp-queries-received-ipv6: 30797907 dns-udp-responses-sent-ipv4: 6316887925 dns-udp-responses-sent-ipv6: 1106898232 dns-tcp-responses-sent-ipv4: 195078927 dns-tcp-responses-sent-ipv6: 31464394