--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6614604594 dns-udp-queries-received-ipv6: 440109128 dns-tcp-queries-received-ipv4: 98914889 dns-tcp-queries-received-ipv6: 14077729 dns-udp-responses-sent-ipv4: 6522350403 dns-udp-responses-sent-ipv6: 439630393 dns-tcp-responses-sent-ipv4: 96593805 dns-tcp-responses-sent-ipv6: 14095454