--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5412863024 dns-udp-queries-received-ipv6: 408185793 dns-tcp-queries-received-ipv4: 118414464 dns-tcp-queries-received-ipv6: 16426545 dns-udp-responses-sent-ipv4: 5286700655 dns-udp-responses-sent-ipv6: 407894727 dns-tcp-responses-sent-ipv4: 116076041 dns-tcp-responses-sent-ipv6: 16458564