--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4141148517 dns-udp-queries-received-ipv6: 438441222 dns-tcp-queries-received-ipv4: 185010960 dns-tcp-queries-received-ipv6: 7844162 dns-udp-responses-sent-ipv4: 4133111432 dns-udp-responses-sent-ipv6: 438381929 dns-tcp-responses-sent-ipv4: 185153032 dns-tcp-responses-sent-ipv6: 7929990