--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3434101219 dns-udp-queries-received-ipv6: 369236462 dns-tcp-queries-received-ipv4: 105892785 dns-tcp-queries-received-ipv6: 14200225 dns-udp-responses-sent-ipv4: 3384900003 dns-udp-responses-sent-ipv6: 368817145 dns-tcp-responses-sent-ipv4: 105456856 dns-tcp-responses-sent-ipv6: 14217755