--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3741266013 dns-udp-queries-received-ipv6: 559253368 dns-tcp-queries-received-ipv4: 105333448 dns-tcp-queries-received-ipv6: 21297529 dns-udp-responses-sent-ipv4: 3642245769 dns-udp-responses-sent-ipv6: 559057772 dns-tcp-responses-sent-ipv4: 101613447 dns-tcp-responses-sent-ipv6: 21359095