--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6403904908 dns-udp-queries-received-ipv6: 368402592 dns-tcp-queries-received-ipv4: 112301711 dns-tcp-queries-received-ipv6: 15922791 dns-udp-responses-sent-ipv4: 6325809780 dns-udp-responses-sent-ipv6: 368047426 dns-tcp-responses-sent-ipv4: 111377445 dns-tcp-responses-sent-ipv6: 15963221