--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7248253262 dns-udp-queries-received-ipv6: 411232707 dns-tcp-queries-received-ipv4: 136781294 dns-tcp-queries-received-ipv6: 14732562 dns-udp-responses-sent-ipv4: 7245682460 dns-udp-responses-sent-ipv6: 411205744 dns-tcp-responses-sent-ipv4: 139330373 dns-tcp-responses-sent-ipv6: 14854163