--- version: rssac002v3 service: a.root-servers.net start-period: '2019-11-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6635113332 dns-udp-queries-received-ipv6: 1315591075 dns-tcp-queries-received-ipv4: 231213128 dns-tcp-queries-received-ipv6: 72008922 dns-udp-responses-sent-ipv4: 6451987791 dns-udp-responses-sent-ipv6: 1314812575 dns-tcp-responses-sent-ipv4: 227836084 dns-tcp-responses-sent-ipv6: 72276735