--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4992377197 dns-udp-queries-received-ipv6: 390759870 dns-tcp-queries-received-ipv4: 118583040 dns-tcp-queries-received-ipv6: 17228712 dns-udp-responses-sent-ipv4: 4865251108 dns-udp-responses-sent-ipv6: 389992822 dns-tcp-responses-sent-ipv4: 115897326 dns-tcp-responses-sent-ipv6: 17302604