--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5933994705 dns-udp-queries-received-ipv6: 425338607 dns-tcp-queries-received-ipv4: 114936743 dns-tcp-queries-received-ipv6: 15974267 dns-udp-responses-sent-ipv4: 5927612264 dns-udp-responses-sent-ipv6: 425244009 dns-tcp-responses-sent-ipv4: 115342623 dns-tcp-responses-sent-ipv6: 16021321