--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4126623451 dns-udp-queries-received-ipv6: 584294261 dns-tcp-queries-received-ipv4: 111792304 dns-tcp-queries-received-ipv6: 21744697 dns-udp-responses-sent-ipv4: 4010677086 dns-udp-responses-sent-ipv6: 583501586 dns-tcp-responses-sent-ipv4: 108159433 dns-tcp-responses-sent-ipv6: 21810022