--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6080276818 dns-udp-queries-received-ipv6: 438358694 dns-tcp-queries-received-ipv4: 125025194 dns-tcp-queries-received-ipv6: 16615364 dns-udp-responses-sent-ipv4: 5950583743 dns-udp-responses-sent-ipv6: 438009223 dns-tcp-responses-sent-ipv4: 122563111 dns-tcp-responses-sent-ipv6: 16659977