--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4594712101 dns-udp-queries-received-ipv6: 670465371 dns-tcp-queries-received-ipv4: 103393669 dns-tcp-queries-received-ipv6: 24039680 dns-udp-responses-sent-ipv4: 4493392731 dns-udp-responses-sent-ipv6: 670218275 dns-tcp-responses-sent-ipv4: 99754875 dns-tcp-responses-sent-ipv6: 24077788