--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4696553023 dns-udp-queries-received-ipv6: 391203014 dns-tcp-queries-received-ipv4: 122191305 dns-tcp-queries-received-ipv6: 15410903 dns-udp-responses-sent-ipv4: 4689470928 dns-udp-responses-sent-ipv6: 391106397 dns-tcp-responses-sent-ipv4: 124284291 dns-tcp-responses-sent-ipv6: 15460297